Blackberry Limited v Optiemus Infracom Limited [2026] EWCA Civ 1004

[2026] EWCA Civ 1004Case No CA-2026-00319
IN THE COURT OF APPEAL (CIVIL DIVISION)
[2025] EWHC 3336 (Comm)
ON APPEAL FROM THE HIGH COURT OF JUSTICE
BUSINESS AND PROPERTY COURTS OF ENGLAND AND WALES
COMMERCIAL COURT (KBD)
Paul Stanley KC (sitting as a Deputy High Court Judge)
Venue Royal Courts of Justice, Strand, London, WC2A 2LLDate 31/07/2026LORD JUSTICE JEREMY BAKERLORD JUSTICE MILESLORD JUSTICE FOXTON
BLACKBERRY LIMITEDClaimant/OPTIEMUS INFRACOM LIMITEDDefendant/
David E Grant KC and Aditya Swarup (instructed by Teacher Stern LLP) for AppellantCraig Morrison KC and Chintan Chandrachud (instructed by Morrison Foerster (UK) LLP) for RespondentHearing Hearing date : 21 July 2026
Approved JudgmentThis judgment was handed down remotely at 10.30am on 31 July 2026 by circulation to the parties or their representatives by e-mail and by release to the National Archives..............................
[1]This is an appeal from the order of Paul Stanley KC dated 19 December 2025 refusing to strike out the proceedings as an abuse of process under CPR 3.4(2)(b). The judgment was given the same day ([2025] EWHC 3336 (Comm), [2026] 1 WLR 2707). It followed a two-day hearing on 18-19 November 2025.[2]BlackBerry is a well-known software company. Optiemus, a public listed company, is an Indian supplier of telephone handsets. BlackBerry issued the claim in the Commercial Court in August 2019, claiming sums said to be due under a contract containing an English jurisdiction clause. Under the then rules, permission to serve the claim in India was required and was granted. In December 2019 the claim form and particulars of claim were served in India, under the Hague Service Convention. Optiemus neither acknowledged service nor filed a defence. In March 2020, having learned that service had been effective, BlackBerry said it would apply for summary judgment but, in the event, neither party did anything. As the judge found, an automatic stay was imposed by CPR 15.11 in July 2020. BlackBerry applied in July 2024 to lift the automatic stay (while reserving its right to contend that this was not necessary). Optiemus contended that the proceedings should be struck out as an abuse of process.[3]The judge concluded that the claim had been automatically stayed in July 2020 by operation of CPR 15.11, and that the application to lift it was to be considered consistently with the principles that govern an application for relief from sanctions. He held that BlackBerry had deliberately decided not to pursue the claim for around four years. Its reasons were not objectively strong enough to justify such a long delay, so BlackBerry was abusing the court’s process by unilaterally leaving the case to lie undecided. He held that the delay had risked causing general prejudice to Optiemus, but had not caused specific identifiable prejudice (other than in relation to interest, which could be addressed by conditions); and that a fair trial remained possible. He decided, in light of all the circumstances and the need for proportionality, not to exercise the court’s discretion to strike the claim out. He also decided to grant relief from sanctions, so that the claim could continue, but on conditions as to the claim for interest and costs. Optiemus now appeals that decision.

Factual Background

The judge divided the history into five periods:

[4]the pre-action stage; a period from the issue of the claim form until around March 2020; a period from March to around August 2020; the period from September 2020 until the first attempt to revive the action in July 2024; and the period from then until the hearing.[5]BlackBerry claims under a contract dated 1 February 2017, which began to operate in June 2017. BlackBerry was to provide various software and related services for Optiemus to use to produce and launch mobile handsets. The agreement was to last for five years. It required Optiemus to pay royalties based on the revenue from the devices sold. It specified minimum royalties for each year of the agreement's term, in US dollars, starting at $4m for the first year (which also included a lump sum fee of $0.5m), rising to just under $6m for the agreement’s final year.[6]BlackBerry rendered various invoices to Optiemus for licence fees and minimum licence fees from 26 July 2018, but except for one payment of $1m in August 2018, Optiemus did not pay them. During this period, BlackBerry was (but, according to Optiemus, late and defectively) providing some of the “deliverables” (mostly software) that the contract envisaged. The product was launched, but was not the commercial success that Optiemus had hoped.[7]In April 2019 BlackBerry's solicitors (Morrison Foerster (UK) LLP, “MF”) sent a letter before action to Optiemus. It referred to the pre-action protocol, and suggested that Optiemus should take legal advice and preserve documents. This led to some correspondence in which Optiemus said it was in the process of finding and selecting lawyers. Optiemus then wrote further contesting the facts described in MF’s letter. It contended that there was an underlying dispute about BlackBerry’s performance and proposed a meeting to discuss dispute resolution.[8]There was further correspondence during 2019. Optiemus said that its selection and engagement of the counsel would depend on whether BlackBerry was willing to participate in alternative dispute resolution, about which Optiemus was waiting to hear from BlackBerry.[9]On 19 July 2019 BlackBerry issued another invoice (for $3.63m). This led Optiemus to send BlackBerry a letter on 17 August 2019, stating that the invoice was rejected because of the disputes set out in Optiemus’s previous letters.[10]On 19 August 2019 MF sent a long letter, setting out BlackBerry's case about the agreement.[11]The claim form was issued on 20 August 2019. BlackBerry applied for permission to serve the claim form in India. The application was granted on the papers on 23 August 2019.[12]On 21 August 2019 MF wrote to Optiemus enclosing a copy of the claim form and particulars. The letter asked whether Optiemus had yet instructed a law firm in England, and whether that firm had instructions to accept service. Optiemus did not respond.[13]India is party to the Hague Service Convention, and has made an objection under Article 10 of that Convention to service other than through official channels. So it was necessary for BlackBerry to follow that route to service, unless Optiemus agreed to accept service through an agent (which it had not done), or the court ordered service by alternative means (which it was not asked to do). The necessary documents were provided to the Foreign Process Section on 11 September 2019, including both the claim form and the particulars of claim. They were forwarded by the Foreign Process Section to India on 2 October 2019. Service was expected to take up to eight months.[14]The documents were in fact served on 10 December 2019, by delivery to Optiemus’s business address. On 11 December 2019 Mr Mahajan, an in-house lawyer at Optiemus wrote to the Senior Master and to the Indian Central Authority, complaining that only some of the documents had been served, but that the particulars of claim, two forms, and part of an exhibit were missing. He asked for proper service. For the purposes of the hearing, Optiemus accepted that it could not prove that service was defective, because (as Optiemus's letter accepted) the papers had become shuffled, and an error might have occurred in Optiemus's office. Since the Indian bailiff's certificate of service, which is now available, records valid service, the parties accepted for the purposes of the hearing that all the documents, including the particulars, must be taken to have been served.[15]Optiemus’s letter to the Senior Master reached MF on 17 December 2019, and they replied by email (though not to Mr Mahajan) and courier on 23 December 2019. At this point MF had no reason to question the statement that there had been missing documents. They enclosed them “to ensure you are in receipt of a full set of documents while awaiting further service via the Ministry of Law and Justice”. So, at this point, both parties were assuming that Optiemus had not yet been validly served and that valid and formal service would take place later.[16]The courier, however, did not deliver that letter because—despite attempting to deliver it on eight dates between 26 December 2019 and 10 January 2020—Optiemus’s offices were closed. MF recorded that in an email of 13 January 2020. Optiemus did not reply.[17]At around this time, early 2020, Optiemus made many employees who had worked on the project redundant.[18]On 2 March 2020 the Foreign Process Section provided MF with a certificate of service, certifying that all the documents had been served on 10 December 2019. This changed the picture. If Optiemus had, as now appeared to be the case, been validly served on 10 December 2019, there was no need to repeat the process, and Optiemus was already late in filing an acknowledgement of service or a defence and needed an extension of time to do so. On 17 March 2020 MF wrote to Optiemus, stating that Optiemus was out of time and that BlackBerry would now proceed to seek summary judgment. The letter asked Optiemus to provide details, either of emails or addresses of its own or of “the law firm that you have instructed in England” to simplify service. BlackBerry did not take the step of obtaining judgment in default because it was concerned about enforcement. It considered that a default judgment would be difficult to enforce in India, whereas a summary judgment would be easier.[19]The judge found that the application for summary judgment would have required some care, and would have needed to be accompanied by an application for permission to make it before an acknowledgement of service had been filed (cf CPR 24.4(1)(a)), but it would not have been complex.[20]The judge found that the application would have required service on Optiemus which, since Optiemus had not acknowledged service, would have entailed another Hague Convention process. Alternative service was not a realistic possibility because judgment obtained following service by anything other than Hague Convention methods is difficult to enforce in the Indian courts. So BlackBerry would have needed to serve an application for summary judgment by Hague Convention methods.[21]In March 2020, because of the spread of Covid-19, the Foreign Process Section closed, and did not reopen until 28 July 2020. Hague Convention service was not therefore possible during this period. There was less clear specific evidence about what the position was in India, which was also affected by the pandemic. The limited evidence before the judge was that there were restrictions in India, but they were easing from late summer 2020. The judge held that it was likely that as a result service might have been even slower than normal. The judge held that BlackBerry could have attempted service from around August 2020, and that it would have been achieved, albeit slowly (and more slowly than usual, given delays caused by the pandemic).[22]The next period addressed by the judge was September 2020 to July 2024. The judge concluded that no steps were taken, formally or in correspondence, to progress the action during this period. BlackBerry did not issue its intended summary judgment application. It did not issue any other application. It did not apply to the court to stay the action, or for directions. Optiemus did not acknowledge service or apply for an extension of time to do so. The same was true of the parties’ correspondence about the dispute. Optiemus did not reply to MF’s March 2020 letter. BlackBerry did not press for an answer. Optiemus did not ask what BlackBerry intended to do about the case, and BlackBerry did not volunteer anything.[23]On BlackBerry's interpretation of the contract, further payments of minimum fees fell due on 30 June 2020 ($4.70m), 30 June 2021 ($5.37m), and 30 June 2022 ($5.95m), but BlackBerry did not demand them, or send invoices for them, and Optiemus did not ask why it had not done so.[24]During this period, one of Optiemus’s potential witnesses died and others left. This is addressed further below.[25]The judge addressed BlackBerry’s reasons for taking no steps during this period. He explained that there was only limited evidence about this. BlackBerry had chosen not to waive privilege, and its account was short of detail.[26]Mr Murtha, a Senior Director of Product Management at BlackBerry described its thinking as follows. Having described the problems that Covid-19 caused with Hague Convention Service, he said: “60. Further, and separately from these issues, the COVID-19 pandemic also caused serious economic disruption in India. Given the pandemic's effect on global businesses (coupled with Optiemus’ lower than expected sales of the Mobile Devices themselves), BlackBerry had serious concerns about Optiemus’s financial health and its ability to satisfy any judgment that BlackBerry may have ultimately obtained. 61. In the light of these matters BlackBerry concluded that it would not be proportionate to incur the costs of issuing or seeking to pursue a summary judgment application at that time."[27]The judge reached the following conclusions about this evidence. He noted that Mr Murtha did not say exactly when BlackBerry reached these conclusions, though he concluded that the context suggested that it was in around mid-2020. Mr Murtha did not say that BlackBerry obtained or considered Optiemus's accounts, and the inference from what he said were the relevant factors (the pandemic and the performance of Optiemus’s handsets in the market) was that they were not a factor. He had exhibited no contemporaneous memorandum of the decision. He did not say that there was any plan, or practice, of monitoring Optiemus’s financial position, or any definite idea about when the claim might be revived. There was no evidence that BlackBerry monitored the case systematically.[28]The judge noted BlackBerry’s counsel’s submissions about Optiemus’s accounts and market information about its share price. The judge said that in the absence of any evidence that BlackBerry considered those accounts as part of its decision-making until 2024, the evidence was not of much significance. However the judge addressed the accounts and the information about Optiemus’s share price. He noted that it is hard to use a set of accounts to predict whether any specific liability will be met or enforced. He concluded that 2019 to 2021 was a difficult time for Optiemus, culminating in a restructuring of its operations during 2020-21. But the difficulty (reflected in the share price) was not something that struck suddenly in March 2020: the market took a jaundiced view of Optiemus when the claim was issued, which did not become much worse after March 2020; by later in the year it was improving. Throughout the period, Optiemus was filing timely accounts, on a going concern basis, without any insolvency process. Throughout the period it had positive equity; and it had growing revenues from 2021, was materially profitable from 2021/22 onwards, with only one year in which it made a very significant loss (2019/20). The market's view, signalled by the share price, was plainly pessimistic in mid 2019-20, and thereafter improved.[29]The judge noted that there was no evidence about how BlackBerry analysed these figures before 2024 (or even that it did). He concluded that, although nobody in March 2020, or for that matter in August 2019, would have regarded Optiemus as a sure bet if it came to enforcement, and there might well have been a shadow in 2020/21, there was no striking event to support the view that things got very much worse than they had been in mid-2020, or that they got dramatically better in 2024. The judge also observed that one cannot simply read across from any single figure in the accounts to any conclusion about enforcement, because a major driving factor in enforcement of a significant debt will not be whether there are assets which are available for enforcement, but whether the business's owners and financiers are willing to find money to avoid insolvency. There were always good reasons for restrained optimism, in Optiemus's case, that this would be so; there is no evidence that it was a business that its stakeholders wished to abandon, or that it was perceived as on the brink of collapse. That conclusion was more likely from 2021 onwards than it had been in 2019 or 2020. The judge concluded that a rationally balanced view would have been—throughout the period—that an enforceable judgment for $6m would have had real economic value, though not necessarily face value.[30]The judge then addressed the period from July 2024 to November 2025. On 19 July 2024 BlackBerry issued an application notice seeking to lift the automatic stay (if that was necessary), and for summary judgment. Having issued that application, MF wrote to Optiemus on 23 July 2024, enclosing a copy and asking for consent to service. Optiemus did not reply. The documents were provided to the Foreign Process Section for Hague Convention service in India on 25 July 2024. Mr Murtha testified to a continuing belief that Optiemus had no defence to the claim.[31]The judge addressed the events that had led to this attempt to resurrect the proceedings. Mr Murtha’s witness statement revealed that at some unspecified point before July 2024 BlackBerry engaged a corporate investigation firm to investigate Optiemus’s assets, and that Optiemus's annual report for 2022/23, dated 12 August 2023, suggested that it was now a worthwhile target. That, coupled with the ability once again to serve in India (a point which the judge noted must have been obvious many years before July 2024) led, Mr Murtha said, to the action being reawakened.[32]Optiemus did now approach English solicitors, Teacher Stern LLP (“TS”), who sent an email on 4 September 2024 (on the basis that they were not yet formally instructed). Formal instructions were in place on 10 October 2024. Five days later, on 15 October 2024, the application notice and supporting documents were served in India, though MF did not find out until December 2024.[33]From November 2024 onwards TS and MF debated various points in correspondence, including a reservation of rights by Optiemus to apply to strike the claim out. Much of the debate concerned the merits of the summary judgment application. Those, after considerable delay in producing a draft defence and counterclaim, were ultimately addressed by agreement, with BlackBerry accepting that the draft defence and counterclaim raised an arguable defence. There was also discussion over whether Optiemus needed an extension of time to file an acknowledgement of service, (which it did not do until 18 August 2025, when it simultaneously issued the application to strike out the claim).[34]While this was happening, the limitation periods for BlackBerry's pleaded claims began to expire. Depending on precisely when they accrued, the first may have expired on 1 July 2024, and the last expired on 19 August 2025.[35]BlackBerry had further claims (for amounts said to have accrued after the issue of the claim form) that it sought to introduce the claim by amendment, and the limitation period for those claims had not expired at the time of the hearing before the judge. The Judge’s Decision[36]The judge analysed the legal principles concerning striking out for abuse of process at [8] to [14]. He referred to a large body of caselaw, including Grovit v Doctor [1997] 1 WLR 640 (“Grovit”); Arbuthnot Latham Bank Ltd v Trafalgar Holdings Ltd [1998] 1 WLR 1426 (“Arbuthnot Latham”); Board of Governors of the National Heart and Chest Hospital v Chettle (1998) 30 HLR 618 (“Chettle”); Asiansky Television plc v Bayer Rosin [2001] EWCA Civ 1792 (“Asiansky”); Société Generale v Goldas Kuyumculuk Sanayi Ithalat Ihracat AS [2017] EWHC 667 (Comm); Alibrahim v Asturion Fondation [2020] EWCA Civ 32, [2020] 1 WLR 32 (Practice Note) (“Asturion”); Alfozan v Quastel Midgen LLP [2022] EWHC 66 (Comm); Morgan Sindall Construction and Infrastructure Ltd v Capita Property and Infrastructure (Structures) Ltd [2023] EWHC 166 (TCC), 206 Con LR 204; Watford Control Instruments Ltd v Brown [2024] EWHC 1125 (Ch) (“Watford”); and Lloyd v Hayward [2024] EWHC 2033 (Ch) (“Lloyd”).[37]At [8] the judge noted that cases involving long delays in prosecuting proceedings had become known by the term “warehousing”, but he preferred to avoid the rhetorical force of the metaphor. The judge referred to the relevant conduct as “Grovit abuse”, and I shall adopt the same shorthand.[38]In [8] the judge set out the guiding principles, which may be summarised (omitting citations) as follows: a) Mere delay in pursuing a claim, however inordinate and inexcusable, does not constitute an abuse of process. b) Bringing litigation with no intention of seeing it through to a decision can constitute an abuse of process. c) The underlying rationale is that “[t]he courts exist to assist parties to resolve disputes and they should not be used for other purposes”. d) That broad principle therefore covers three categories of case.(i) When the claimant, from the outset of the litigation, does not intend to bring it to a decision.(ii) When the claimant at first intends to bring a case to a conclusion but later decides to abandon it.(iii) When the claimant starts a case intending to see it to its conclusion, but later decides to pause it, planning to revive it if something happens in the future. e) The first two categories are more likely to be abusive than the last, since they run more directly contrary to the purposes for which the court's process exists. However, the third category may be abusive. But none of the cases is automatically to be characterised as an abuse. f) Hence a unilateral decision by a claimant not to pursue its claim for a substantial period of time, while maintaining an intention to pursue it at a later juncture, may well constitute an abuse of process, but does not necessarily do so. g) The key factor in deciding whether such a unilateral decision does constitute an abuse of process is the reason why the claimant put the proceedings on hold, and the strength of that reason, objectively considered, having regard to the length of the delay. Although a claimant should (instead of taking the decision unilaterally) ask the defendant for consent or apply to the court for a stay or directions, it is not the law that the failure to do so automatically renders the claimant’s conduct abusive no matter how good its reason may be or the length of the delay. h) The questions whether the claimant deliberately decided not to progress an action because of a deliberate decision and (if so) why, raise issues of intent. But whether that decision was abusive raises objective issues about the length of the delay and the strength of that reason objectively considered. An abuse of process may exist even where the claimant has acted in good faith. i) The length of the delay is important. The longer the period of stasis in an action the more risk there is of prejudice to the other party and the greater the potential for an adverse impact upon the administration of justice. The relevant delay is that which has occurred during the proceedings (not before their issue), though pre-action delay may be relevant to factual questions, such as what inferences can be drawn as to intent. j) Among the reasons that have, at one time or another, been mentioned as potentially offering objectively strong reasons for a decision to put an action on hold are coordination with other related litigation; negotiations; concern about the defendant's insolvency and insurance position; and further investigation of the facts. But it is never a question of simply ticking off reasons on a list of acceptable reasons for delay: the question is always whether the reasons are strong enough, objectively, in the context of the delay that has occurred. k) The approach of looking to the reasons for the decision applies in all cases, and is not restricted to those where the claimant had a contingent intention to continue the case. There is no warrant for categorising each case into a “maybe” or “never” case. That is unrealistic as the line between these categories will rarely be clearcut. However, the vaguer or more remote the possibility of revival, and the longer the delay, the more difficult the claimant will find it to show that the reasons for putting the claim on ice are objectively strong enough to avoid a finding of abuse. l) Where the claimant has abused the process, strike-out does not follow in every case. It will “frequently” do so; but is not automatic. Some cases will cross the line into abuse but not be sufficiently serious to justify the sanction of striking out. There are two stages. The court must first decide whether the claimant’s conduct constitutes an abuse of process; if it is not abusive, there is no discretion to be exercised. If abuse is found, the court must then decide whether to exercise its discretion to strike out the claim. That will include considering questions of proportionality and whether there are other alternative means of meeting the abuse.[39]As to point (l) above, the judge specifically addressed and rejected Optiemus’s submission that once the court had concluded that the proceedings were abusive they were required to be struck out unless compelling reasons to the contrary could be demonstrated. This argument was based on a passage from the decision of the Court of Appeal in Chettle. In Watford, Richards J had accepted the submission that Chettle established a legal rule that where the claimant was guilty of Grovit abuse, compelling reasons were required to avoid the remedy of striking out where there was an abuse of process. The judge noted that in Lloyd, HHJ Keyser KC had concluded that Richards J was wrong and that compelling reasons were not required to avoid striking out. The judge agreed with HHJ Keyser KC.[40]At [14]

the judge concluded:

“In my judgment, then, the position is as follows. There are two separate questions. The first is whether there has been an abuse of process. That is an evaluative, but not a discretionary decision. It is the fulcrum on which the existence of the discretion turns, and the test is given by Alibrahim. The focus at that point is on the claimant’s intent (whether it deliberately decided not to progress the case), its reasons for that, and the objective strength of those reasons as a justification for the delay. The second question, which arises only once abuse has been found, is discretionary in the full sense: how should the court respond to the abuse that has been identified? Under the CPR, the proper approach to the exercise of that discretion does not depend on “compelling reasons”, but on the application of the principles that govern the court’s exercise of such discretion under the CPR, including proportionality and the overriding objective. The result of the exercise will “frequently” be that the claim will be struck out. But that is because that will “frequently” be what the overriding objective requires, not because there is some special test of “compelling reason”.”
[41]Having set out these principles, at [15]

the judge explained that he would ask himself the following questions:

“(a) First, did BlackBerry deliberately decide not to pursue the claim? Without such a decision, this is merely a case of "long delay" which is not itself an abuse of process. If there was such a decision, the case may (but may not) disclose an abuse of process. (b) Second, if there was such a decision, what delay did it cause? (c) Third, if there was such a decision, what were the reasons for it? (d) Fourth, do those reasons objectively justify the delay? That involves both the previous questions, because a reason that is good enough to justify a short delay may not be good enough to justify a longer one. I should conclude that there has been an abuse of process if, but only if, the claimant took a deliberate decision not to progress the claim towards decision for reasons which were, judged against the length of the delay, not objectively sufficient. (e) Finally, if there was an abuse of process, is the appropriate response to that abuse, having regard to the overriding objective and the effect of the abuse, to strike out the claim. I should consider proportionality, including alternatives (short of strike out) that would adequately meet the overriding objective, and the responsibility of and prejudice to both parties and effect on the court. I should not approach this exercise in a spirit of indulgence, or on the false assumption that prejudice is an essential component of the analysis (it is clear, from Grovit, that it is not); I must remember that the overriding objective involves not merely fair trial, but the enforcement of rules and practice directions; but I should not insist on the existence of a “compelling reason” not to strike the claim out.”
[42]The judge addressed two further legal questions, concerning CPR 15.11. The first was whether the automatic stay imposed by CPR 15.11 applied at all. This turned on the wording of the rules in a case where the claim form had been served out of the jurisdiction with permission, but the defendant had not acknowledged service. The judge concluded that the automatic stay provisions did apply, and the stay came into effect on 14 July 2020. There is no appeal from that part of the judge’s reasoning and nothing more need be said about it. The second issue concerned the approach the court should take to an application under CPR 15.11(2) to lift the stay. The judge concluded that the court should follow the criteria set out in Denton v TH White Ltd [2014] EWCA Civ 906, [2014] 1 WLR 3926. Again there is no appeal against that part of the judge’s decision and nothing more need be said.

The judge then addressed the five questions quoted in [‎41] above.

[44]At [72] the judge’s answer to the first question was that BlackBerry had made a deliberate decision at some point in 2020 not to do anything about the claim.[45]At [73] the judge’s answer to the second question was that the period of delay was just over four years, from March 2020, when BlackBerry learned that the proceedings had been served in India, to July 2024, when it issued its summary judgment application.[46]At [74]ff the judge addressed the third and fourth questions. He concluded that there were two reasons for the delay. The first was that it was impossible to serve a summary judgment application from March to August 2020. There was therefore an objectively strong reason for the delay from March to August 2020, and BlackBerry could not be said to be abusing the court's process by maintaining the action during that period.[47]That reason however no longer applied from around September 2020. The judge said that if BlackBerry had a justification, it must have been its perception that even a legally enforceable judgment was likely to miss its target, because Optiemus might not have sufficient assets to meet it. The judge then analysed the strength of that reason, objectively considered, having regard to the period of the delay of just under four years. At [78] he concluded that there was no objectively strong reason for this delay. He noted the following. The next procedural step was issuing and serving a summary judgment application. BlackBerry believed that Optiemus had no realistic prospect of defending the claim, which was a simple contract claim. It knew, before the proceedings were issued, roughly what Optiemus planned to say. Costs were predictable; they would have been modest in proportion to the amount at stake. BlackBerry's concerns about Optiemus's financial position were general and impressionistic. Optiemus was not in any sort of insolvency process, and none was threatened. Throughout the period, its shares traded; and from July 2020 they rose, suggesting that investors saw it as a company with value. It regularly filed audited accounts, on a going concern basis, without qualification; those accounts always showed substantial equity and (from 2021 onwards) an improving financial condition. Whatever Optiemus’s condition, a judgment in BlackBerry’s favour would have become capable of effective enforcement if Optiemus's financial position improved. It would, at any time, have strengthened BlackBerry’s negotiating position. It would have provided Optiemus (and its other stakeholders) with reliable and definite information about its true financial obligations. There is no evidence that BlackBerry systematically investigated Optiemus’s financial status or kept it under regular review. The delay long outlasted Covid-19, and the low point in Optiemus's financial condition (which was 2019/20), the restructuring of its operations in 2020/21, and its increasing revenues and return to profitability thereafter.[48]At [80] and [81] the judge concluded that BlackBerry’s unilateral decision to do nothing to advance the claim for almost four years constituted an abuse of process because the reasons for it were not, objectively considered against the length of the delay, sufficiently strong to justify it.

The judge said at [82]:

“I must therefore consider the appropriate response to this abuse of process, and specifically whether it justifies striking out the claim. If I had accepted the proposition that, having found abuse, a strike-out should follow unless there are “compelling reasons” to the contrary, I would have been bound to strike the claim out, for no such compelling reason has been identified. But, for reasons I have explained, I do not accept that that is the applicable test, and I will consider the circumstances more broadly.”
[50]He then turned to the final question. He did so over 29 paragraphs running from [83] to [112]. He analysed the various features of the case under several headings:(a) general factors: parties’ conduct;(b) potential prejudice to Optiemus (by reference to witnesses, documents, loss of ability to contest service, accounting and provisions, interest, and what was called “the submarine pursuit” of the case);(c) prejudice to BlackBerry; and(d) the effect on the court and on the just determination of the dispute.[51]He then made an overall assessment in [111] as follows:
“Although BlackBerry's decision not to proceed with the claim from September 2020 until July 2024 was an abuse of process, I consider that in all the circumstances of this case striking out the claim is not the appropriate or just response. By a narrow margin, I consider that striking out the claim would be disproportionate, and would not best advance the overriding objective. The key factors in this decision are as follows: a) The delay has not caused specific identifiable prejudice to Optiemus, other than in respect of interest, which can be financially estimated and adequately corrected for if interest is awarded or by a condition I discuss below. I have not lost sight of the fact that general non-specific prejudice will have been caused, and have taken that into account, alive to the risk delay often does its damage drop by drop. But the damage done by the time that has passed is limited in a case which is likely to depend mostly on documents passing between the parties, and I have no doubt that the case remains capable of fair decision. b) Striking out the claim would cause specific, and substantial, prejudice to BlackBerry, which would be deprived of the ability to pursue admittedly arguable claims for sums exceeding USD 6 million. c) I have had firmly in mind the stress the cases consistently lay on diligent pursuit of litigation; the significance of sanctions in deterring abuse; and the fact that the overriding objective is concerned not just with fair trial but with the enforcement of the rules. But the abuse that I have identified (abuse though it is) was not of the most serious kind. This was not “warehousing” in the sense of the bulk commencement of large numbers of claims, followed by strategic selection of those that turned out to be most valuable: BlackBerry began a single, and arguable, claim with every intention of pursuing it; it did not abandon the claim, although it neither pursued it nor took systematic steps to address the delay or monitor the position. Although BlackBerry's decision was deliberate, it was not intended to prejudice Optiemus, did not involve any breach of any specific rule, and was not in bad faith. d) The delay was prolonged. That is somewhat mitigated by Covid-19. Although I have not accepted that the problems with service that the pandemic caused can be an explanation for the delay after September 2020 or thereabouts, the original decision to suspend activity in March 2020 was justifiable, and some allowance (by way of mitigation, rather than justification) can and should be made for that and for the confusion caused by the disruption of 2020–21. Some margin of appreciation should be allowed for BlackBerry considering, in mid-2020 that Optiemus’s financial position needed thought, albeit that is objectively insufficient to justify most of the very long delay that occurred. e) If BlackBerry had wished to do so it could have discontinued the proceedings in 2020 (CPR 38.3), and that had it done so it would not have required the court’s permission to bring the claim afresh, because under CPR 38.7 such permission is not required if the claimant discontinues before a defence is filed. Its failure to do so cannot be explained as an attempt to avoid the costs consequences of discontinuance, since it is unlikely that Optiemus would have had any significant claim for costs. If BlackBerry had discontinued, it would have been free—in July 2024—to bring its claims, most or all of which would not at that point have been time barred. BlackBerry did not, therefore, need to make an application to the court for a stay: it could have disengaged and re-engaged by its own unilateral act, within the rules. This, too, affects the seriousness of the abuse. f) When considering proportionality, it is legitimate to bear in mind that the obligation to advance proceedings lies on both parties, and that Optiemus itself did nothing at all in the period from March 2020 onwards to advance them; it was in default throughout this period (if it wished to contest the proceedings) by not serving a defence; it did not contact BlackBerry to discover its intentions. Its approach was one of complete disengagement. These were not the actions of a vulnerable individual defendant, but of a publicly listed company equipped with a legal department and well capable of looking after its interests, which presumably thought that those interests were best served by preserving radio silence. When the case was revived, and with the benefit of expert legal guidance, Optiemus’s first reaction was not loud protest about that, but to engage with the merits, and it did not issue a strike out application until many months of correspondence had passed. g) As a subsidiary factor, BlackBerry has other claims which it has never brought, and which are not time barred. Those are claims that it is difficult to see (subject to any argument on the substance about abandonment) it could not pursue, and will raise many of the same questions as the existing claims. In some respects, it might be thought, it is in the interests of all parties including Optiemus that they should be tried as part of this claim, because in so far as Optiemus’s response is to raise a counterclaim which might now itself be time barred if BlackBerry brought those claims as free-standing ones, that avoids any risk that BlackBerry might maintain that Optiemus cannot rely on its counterclaim defensively. h) There are steps that the court can take, short of strike out, to address what has occurred. Those steps include the condition that I will consider imposing in relation to interest (see below); they may include the order for costs made on these applications; they include the way the court approaches disclosure, particularly of the WatchDox documents; they may include the scope of disclosure for Optiemus; and they will include the way that the trial judge approaches any submissions about adverse inferences to be drawn from absent witnesses or missing documents.” a) The delay has not caused specific identifiable prejudice to Optiemus, other than in respect of interest, which can be financially estimated and adequately corrected for if interest is awarded or by a condition I discuss below. I have not lost sight of the fact that general non-specific prejudice will have been caused, and have taken that into account, alive to the risk delay often does its damage drop by drop. But the damage done by the time that has passed is limited in a case which is likely to depend mostly on documents passing between the parties, and I have no doubt that the case remains capable of fair decision. b) Striking out the claim would cause specific, and substantial, prejudice to BlackBerry, which would be deprived of the ability to pursue admittedly arguable claims for sums exceeding USD 6 million. c) I have had firmly in mind the stress the cases consistently lay on diligent pursuit of litigation; the significance of sanctions in deterring abuse; and the fact that the overriding objective is concerned not just with fair trial but with the enforcement of the rules. But the abuse that I have identified (abuse though it is) was not of the most serious kind. This was not “warehousing” in the sense of the bulk commencement of large numbers of claims, followed by strategic selection of those that turned out to be most valuable: BlackBerry began a single, and arguable, claim with every intention of pursuing it; it did not abandon the claim, although it neither pursued it nor took systematic steps to address the delay or monitor the position. Although BlackBerry's decision was deliberate, it was not intended to prejudice Optiemus, did not involve any breach of any specific rule, and was not in bad faith. d) The delay was prolonged. That is somewhat mitigated by Covid-19. Although I have not accepted that the problems with service that the pandemic caused can be an explanation for the delay after September 2020 or thereabouts, the original decision to suspend activity in March 2020 was justifiable, and some allowance (by way of mitigation, rather than justification) can and should be made for that and for the confusion caused by the disruption of 2020–21. Some margin of appreciation should be allowed for BlackBerry considering, in mid-2020 that Optiemus’s financial position needed thought, albeit that is objectively insufficient to justify most of the very long delay that occurred. e) If BlackBerry had wished to do so it could have discontinued the proceedings in 2020 (CPR 38.3), and that had it done so it would not have required the court’s permission to bring the claim afresh, because under CPR 38.7 such permission is not required if the claimant discontinues before a defence is filed. Its failure to do so cannot be explained as an attempt to avoid the costs consequences of discontinuance, since it is unlikely that Optiemus would have had any significant claim for costs. If BlackBerry had discontinued, it would have been free—in July 2024—to bring its claims, most or all of which would not at that point have been time barred. BlackBerry did not, therefore, need to make an application to the court for a stay: it could have disengaged and re-engaged by its own unilateral act, within the rules. This, too, affects the seriousness of the abuse. f) When considering proportionality, it is legitimate to bear in mind that the obligation to advance proceedings lies on both parties, and that Optiemus itself did nothing at all in the period from March 2020 onwards to advance them; it was in default throughout this period (if it wished to contest the proceedings) by not serving a defence; it did not contact BlackBerry to discover its intentions. Its approach was one of complete disengagement. These were not the actions of a vulnerable individual defendant, but of a publicly listed company equipped with a legal department and well capable of looking after its interests, which presumably thought that those interests were best served by preserving radio silence. When the case was revived, and with the benefit of expert legal guidance, Optiemus’s first reaction was not loud protest about that, but to engage with the merits, and it did not issue a strike out application until many months of correspondence had passed. g) As a subsidiary factor, BlackBerry has other claims which it has never brought, and which are not time barred. Those are claims that it is difficult to see (subject to any argument on the substance about abandonment) it could not pursue, and will raise many of the same questions as the existing claims. In some respects, it might be thought, it is in the interests of all parties including Optiemus that they should be tried as part of this claim, because in so far as Optiemus’s response is to raise a counterclaim which might now itself be time barred if BlackBerry brought those claims as free-standing ones, that avoids any risk that BlackBerry might maintain that Optiemus cannot rely on its counterclaim defensively. h) There are steps that the court can take, short of strike out, to address what has occurred. Those steps include the condition that I will consider imposing in relation to interest (see below); they may include the order for costs made on these applications; they include the way the court approaches disclosure, particularly of the WatchDox documents; they may include the scope of disclosure for Optiemus; and they will include the way that the trial judge approaches any submissions about adverse inferences to be drawn from absent witnesses or missing documents.”
[52]At [112] he said this:
“Overall therefore, taking those factors into account, I think it would be inappropriate, and inconsistent with the overriding objective, to exercise my discretion to strike the claim form out, despite the abuse of process that BlackBerry was responsible for. That does not mean that I shall not consider what steps I may take, both as to costs and (as set out below) as to conditions that I may require if the stay is to be lifted.”
[53]The judge then reached the conclusion, applying the Denton v White criteria, that the automatic stay should be lifted, essentially for the same reasons as he had given for refusing to strike out the claim for abuse of process.[54]He also allowed BlackBerry to amend the particulars of claim to add the sums alleged to have fallen due after the claim form was issued.[55]As already mentioned, the judge referred to the conditions that he might require to be imposed. He found in [102] that the running of interest during the period of delay was a quantifiable prejudice which the court had the power to address without striking out the claim. At a consequential hearing, the judge held that BlackBerry should undertake not to seek interest for the period from 1 September 2020 to 18 July 2024 in respect of the sums claimed in the unamended claim form (rejecting a submission that this condition should be limited to the difference between the interest otherwise payable under s.35A of the Senior Courts Act 1981 and the interest Optiemus would have received on the amounts over the same period). He did not impose such a restriction in respect of the sums claimed by BlackBerry by way of the amendments that he allowed. As to costs, the judge required BlackBerry to pay 30% of Optiemus’s costs of the stay and strike out applications.

Grounds of appeal and summary of submissions

[56]The judge gave permission to appeal. There are seven grounds of appeal which may be summarised as follows:(1) The judge applied the wrong test for Grovit abuse; in such cases where there is abuse, the claimant must show compelling reasons why the case should not be struck out.(2) The judge erred in law or did not take into account or gave insufficient weight to the fact that Grovit abuse entails significant and serious breaches of the overriding objective and is contrary to the proper approach to case management under the CPR; and wrongly concluded that only the most serious cases of abuse would lead to strike out.(3) The judge made plainly wrong findings concerning prejudice to Optiemus and/or plainly wrongly evaluated the facts or, alternatively, failed to take into account relevant factors in relation thereto.(4) The judge wrongly took into account irrelevant factors or failed to take relevant ones into account.(5) Alternatively to grounds (1) and (2), the judge was wrong in law or fact in not taking account of the fact that BlackBerry had for a time no real intention of ever pursuing the claim (as opposed to putting the claim on hold).(6) The judge’s decision was perverse, given the length of the abuse of process and the lack of prejudice to BlackBerry other than its loss of the claim.(7) The judge was wrong to lift the automatic stay.[57]At the hearing, counsel for Optiemus did not pursue ground (5) and accepted that ground (6) depended on the court’s decision on grounds (3) and (4). He also accepted that ground (7) depended on the court’s decisions on grounds (1) to (4).[58]In outline Optiemus submitted as follows. As to grounds (1) and (2), the judge applied the wrong legal test for Grovit abuse and/or failed to take relevant matters into account as to the seriousness of the abuse.[59]The analysis requires two stages: was there an abuse of process; and, if so, should the court in its discretion strike out the claim in all the circumstances: see Asturion. The two stages are interlinked and the second stage has to be considered in the light of the abuse. When considering the second stage, as a matter of law, the court is required to consider whether there are compelling reasons against striking out. Alternatively, striking out is the natural or expected approach to Grovit abuse. The judge erred by treating the abuse as a subsidiary factor and dismissed its relevance on the basis it was not of the most serious kind.[60]In the alternative, even if compelling reasons are not part of the test then the phrase “compelling reasons” captures the lack of frequency with which the test will be met and is a suitable indicator of what the claimant will generally have to show. On the judge’s approach, however, it is highly unlikely that a claim will be struck out despite the finding of Grovit abuse. That undermines the force of Grovit, where the House of Lords took a deliberate decision to make clear that there was a new species of abuse, which did not require proof of prejudice.[61]The judge therefore applied the wrong test. Alternatively he failed to take into account the inherent seriousness of the abuse; rather he downplayed it and treated it as a minor factor in the balance rather than a serious and weighty starting point.[62]As to ground (3), the judge was plainly wrong in his findings of fact and evaluation of the evidence in relation to prejudice to Optiemus. First, the judge erred in treating the issue of prejudice as of primary importance. The case law shows that prejudice is not an essential element of the analysis. Second, the judge’s finding that there was no concrete prejudice in relation to witnesses was plainly wrong. Absent the Grovit abuse, key employees would have been proofed before their death or departure from Optiemus, or in the case of the latter, Optiemus could have ensured that their departure was on terms that required them to assist in the litigation. In any case, Optiemus would have been in a position to seek information from them as recent leavers. Optiemus’s more detailed submissions are addressed below.[63]There were other respects in which the judge erred in respect of prejudice to Optiemus. He wrongly dismissed Optiemus’s evidence about its approach to provisions in its financial reports. He failed to give proper weight to the prejudice arising from Optiemus’s belief that the parties regarded the contract as at an end, so that it did not serve further termination notices. The judge’s approach to the disallowance of interest for the claims introduced by amendment was illogical and inconsistent. More is said about Optiemus’s detailed arguments below.[64]As to ground (4), first, the judge wrongly took account of irrelevant factors or failed to take account of relevant ones. The judge failed to take account of the prejudice to Optiemus and to other court users arising from the need to investigate the consequences of the delay. Two and a half days of court time were taken on the issue. The parties and the court were required to examine steps taken over five and a half years. The judge failed to take this into account. Second, the judge wrongly took account of Optiemus’s own conduct in failing to respond to the claim. This was irrelevant to the exercise of the court’s discretion.[65]I have already noted that Optiemus accepted that the other grounds depended in one way or another on grounds (1) to (4).[66]In outline BlackBerry submitted that the judge was right for the reasons he gave. As to ground (1), the judge’s approach to the second stage of the analysis was to consider the overriding objective, including the proportionality of striking out. This was correct. Any suggestion that Chettle laid down a legal requirement that compelling reasons must be given to avoid such an order is wrong. Grounds 2 to 7 are an attempt to challenge the judge’s exercise of discretion or his evaluation of the facts.[67]BlackBerry submitted that the authorities do not support the suggested compelling reasons test. Optiemus’s arguments are based on a misreading of Chettle; alternatively, that case was decided before the introduction of the CPR and should not be followed in the light of subsequent cases. The position was properly set out by HHJ Keyser KC in Lloyd. The compelling reasons test is also wrong in principle and would not be workable.[68]BlackBerry contended that ground (2) is an attempt to introduce the compelling reasons test through the back door. If there is no such test then it must follow that there may be cases where striking out is not appropriate even where the claimant is unable to establish compelling reasons. To the extent that ground 2 is not arguing that the judge should have applied a different legal test then it amounts to a challenge to the judge’s exercise of his discretion.[69]BlackBerry submitted that ground (3) is concerned with the judge’s evaluation of the facts and that Optiemus has identified no basis for interfering with the judge’s assessment. BlackBerry’s detailed submissions have been taken account in the discussion below.[70]BlackBerry said under ground (4) that the judge had not failed to take account of relevant factors or taken irrelevant ones into account. Optiemus has not raised proper grounds for impugning the judge’s discretionary decision. Again the detail is addressed further below. Discussion and conclusions The CPR

Discussion and conclusions

[71]The CPR came into effect in April 1999. In its original form, Part 1.1(1) stated that the CPR were “a new procedural code with the overriding objective of enabling the court to deal with cases justly”.[72]In its current form CPR 1.1 provides:
“(1) These Rules are a procedural code with the overriding objective of enabling the court to deal with cases justly and at proportionate cost. (2) Dealing with a case justly and at proportionate cost includes, so far as is practicable – (a) ensuring that the parties are on an equal footing and can participate fully in proceedings, and that parties and witnesses can give their best evidence; (b) saving expense; (c) dealing with the case in ways which are proportionate – (i) to the amount of money involved; (ii) to the importance of the case; (iii) to the complexity of the issues; and (iv) to the financial position of each party; (d) ensuring that it is dealt with expeditiously and fairly; (e) allotting to it an appropriate share of the court’s resources, while taking into account the need to allot resources to other cases; (f) promoting or using alternative dispute resolution; and (g) enforcing compliance with rules, practice directions and orders.” (a) ensuring that the parties are on an equal footing and can participate fully in proceedings, and that parties and witnesses can give their best evidence; (i) to the amount of money involved; (ii) to the importance of the case; (iii) to the complexity of the issues; and (iv) to the financial position of each party; (e) allotting to it an appropriate share of the court’s resources, while taking into account the need to allot resources to other cases; (g) enforcing compliance with rules, practice directions and orders.”
[73]CPR 1.2 provides:
“The court must seek to give effect to the overriding objective when it – (a) exercises any power given to it by the Rules; or (b) interprets any rule subject to rules 76.2, 79.2 and 80.2, 82.2 and 88.2.” (b) interprets any rule subject to rules 76.2, 79.2 and 80.2, 82.2 and 88.2.”
[74]By CPR 1.3 the parties are required to help the court to further the overriding objective.[75]CPR 1.4 places a duty on the court to further the overriding objective by actively managing cases.[76]Part 3 contains provisions about the court’s case management powers. CPR 3.4 gives the court the power to strike out a statement of case:
“(1) In this rule and rule 3.5, reference to a statement of case includes reference to part of a statement of case. (2) The court may strike out a statement of case if it appears to the court – (a) that the statement of case discloses no reasonable grounds for bringing or defending the claim; (b) that the statement of case is an abuse of the court’s process or is otherwise likely to obstruct the just disposal of the proceedings; (c) that there has been a failure to comply with a rule, practice direction or court order; …” (a) that the statement of case discloses no reasonable grounds for bringing or defending the claim; (b) that the statement of case is an abuse of the court’s process or is otherwise likely to obstruct the just disposal of the proceedings; (c) that there has been a failure to comply with a rule, practice direction or court order; …”

Grovit abuse and striking out

[77]Grovit, which was decided before the introduction of the CPR, decided that where a party brings claims and deliberately fails to prosecute them to conclusion this may amount to abuse. In Arbuthnot Latham, Lord Woolf MR confirmed that “a wholesale disregard of the rules is an abuse of process”. Only claims that are intended to be pursued properly ought to be brought. Given that the ground of dismissal on this basis was an abuse of process, it was not subject to the principle in Birkett v James [1978] AC 297 (at 318) that an action could not be dismissed for want of prosecution before the expiry of the limitation period. What is the source of the court’s power to strike out a claim for Grovit abuse? Before the CPR the power was identified as being part of the court’s inherent jurisdiction to prevent abuses of its own processes. As just noted, CPR 3.4(2)(b) gives the court a power to strike out a statement of case where the statement of case is an abuse of process. A statement of claim includes a claim form. In terms this rule might be thought to apply only where the statement of case is itself abusive (where e.g. the statement of case is vague, incoherent or vexatious, or where it constitutes an abusive attempt to relitigate). However neither party sought to argue that the power under CPR 3.4(2)(b) does not cover cases of Grovit abuse and in my judgment it should be given a broad interpretation to cover such cases. In any event CPR 3.1(1) preserves the inherent jurisdiction. Nothing turns on whether the application is considered under CPR 3.4(2) or the inherent jurisdiction.

Grounds (1) and (2)

[78]Optiemus contends that there is a legal principle that the claimant needs to show compelling reasons to avoid a strike out where there has been Grovit abuse. I start with the caselaw.[79]The decision in Grovit was given in April 1997. Lord Woolf said at 647G-H that:
“The courts exist to enable parties to have their disputes resolved. To commence and to continue litigation which you have no intention to bring to a conclusion can amount to an abuse of process. Where this is the situation the party against whom the proceedings is brought is entitled to apply to have the action struck out and if justice so requires (which will frequently be the case) the courts will dismiss the action. The evidence which was relied on to establish the abuse of process may be the plaintiff’s inactivity. The same evidence will then no doubt be capable of supporting an application to dismiss for want of prosecution. However, if there is an abuse, it is not strictly necessary to establish want of prosecution under either of the limbs identified by Lord Diplock in Birkett v James [1978] AC 297.”
[80]This passage shows that a failure to prosecute the proceedings may be abusive, and although striking out may be appropriate, it is not automatic. The touchstone was whether justice required it. Optiemus contended that Lord Woolf’s comment that this would “frequently” be the right response should be seen as part of the legal test. I am unable to accept this. The comment that an outcome will frequently occur is not a workable legal yardstick, since courts addressing particular cases could not know whether the facts were of a kind that frequently led to such a response. Moreover, “frequently” does not mean almost always or even usually. As HHJ Keyser KC suggested in Lloyd, Lord Woolf’s words served to remind claimants who abuse the process of the court that they cannot presume on being indulged.[81]The decision in Chettle was given in July 1997, a few months after Grovit. At p. 628 Aldous LJ referred to Grovit and summarised it as showing that any proceedings not started or maintained for the purpose of having the dispute resolved abuse the system and that “such proceedings will normally be struck out as being an abuse of process”. He then turned to the facts and said:
“I therefore would strike the action out upon the basis that it came to be an abuse of the process of the Court. I realise that the plaintiffs can and may well start a fresh action, but that is to my mind not determinative. Once the action came to amount to an abuse of the process of the Court, it required to be struck out unless compelling reasons to the contrary could be demonstrated. There are no such reasons in this case. I therefore would allow this appeal and order that the action be struck out …”
[82]I am unable to read this passage as seeking to state a legal principle concerning the approach to the exercise of the court’s discretion in cases of Grovit abuse. Aldous LJ did not suggest that he was refining or supplementing the reasoning in Grovit. All he did was refer to the case in summary terms. There is no suggestion in the report that there was any issue or argument about the principles to be derived from Grovit: his comment about the normal outcome was a paraphrase of it. When he referred to the need for “compelling reasons”, Aldous LJ was addressing the facts of the action before him and was, indeed, specifically addressing the argument that the plaintiffs could and might well start a fresh action. The decision was simply that, applying the reasoning in Grovit, the plaintiff’s conduct had been abusive and that striking out was appropriate. It goes no further than that. It is a commonplace that judgments must be read by reference to their facts and the issues being addressed in them. In my judgment Optiemus has inadmissibly sought to extract a phrase used to express a conclusion and turn it into a rule of law.[83]Arbuthnot Latham was decided in December 1997. Lord Woolf MR (sitting in the Court of Appeal) explained at 1436G-H that Grovit recognised that to continue litigation with no intention of bringing it to a conclusion can amount to an abuse of process and that this is a separate ground from Birkett v James for striking out the action. He said that:
“The more ready recognition that wholesale failure, as such, to comply with the rules justifies an action being struck out, and as long as it is just to do so, will avoid much time and expense being incurred in investigation [sic] questions of prejudice, and allow the striking out of actions whether or not the limitation period has expired.”
[84]The expression “as long as it is just to do so” is consistent with the formula in Grovit, “if justice so requires”.[85]In Re Vitara Foods [1999] BCC 315, Lindsay J said that once such abuse is shown, it appeared from Chettle that it is for the plaintiff to bring forward compelling reasons to the contrary if striking out is to be avoided. There is no indication in the report that the test for a striking out was subject to any argument. For the reasons already given I do not think that Chettle was purporting to create a legal test of this kind.[86]The CPR took effect from 26 April 1999.[87]Purdy v Cambran [1999] CPLR 843 (“Purdy”) was decided by this court in December 1999. It was a decision to strike out the case for want of prosecution amounting to an abuse of process. May LJ explained at [44] that the case straddled the introduction of the CPR. May LJ said this:
“46. The Civil Procedure Rules are a new procedural code with an overriding objective enabling the court to deal with cases justly in accordance with considerations which include those to be found in rule 1.1(2). One element expressly included in rule 1.1(2) as guiding the court towards dealing with cases justly is that the court should ensure, so far as is practical, that cases are dealt with expeditiously and fairly. Delay is, and always has been, the enemy of justice. The court has to seek to give effect to the overriding objective when it exercises any powers given to it by the rules. This applies to applications to strike out a claim. When the court is considering, in a case to be decided under the Civil Procedure Rules, whether or not it is just in accordance with the overriding objective to strike out a claim, it is not necessary or appropriate to analyse that question by reference to the rigid and overloaded structure which a large body of decision under the former rules had constructed. Mr Lewis QC, for the claimant in this case, has correctly not sought to do so. 47. As Lord Woolf MR said in Biguzzi v Rank Leisure Plc [1999] 1 WLR 1926 at 1934G (“Biguzzi”): “Earlier authorities are no longer generally of any relevance once the CPR applies.” “50. Lord Woolf MR in Biguzzi drew attention to the armoury of powers which the court has under the Civil Procedure Rules in addition to that of striking out: see in particular his judgment at 1932G to 1934C. In doing so, he was doing no more than emphasising the range of powers available to the court in its search for justice, indicating that the court should consider such powers as may be relevant to a particular case before deciding which to use. He was not indicating that any one of those powers was inherently more appropriate than any other. Mr Lewis has, correctly in my view, not suggested otherwise. 51. The effect of this is that, under the new procedural code of the Civil Procedure Rules, the court takes into account all relevant circumstances and, in deciding what order to make, makes a broad judgment after considering available possibilities. There are no hard and fast theoretical circumstances in which the court will strike out a claim or decline to do so. The decision depends on the justice in all the circumstances of the individual case. As I read the judgments of Lord Lloyd of Berwick and Ward LJ in the UCB case [sc. UCB Corporate Services Ltd v Halifax (SW) Ltd [1999] CPLR 691], they are saying nothing different from this. As Ward LJ said in the UCB case, Lord Woolf MR in Biguzzi was not saying that the underlying thought processes of previous decisions should be completely thrown overboard. It is clear, in my view, that what Lord Woolf was saying was that reference to authorities under the former rules is generally no longer relevant. Rather is it necessary to concentrate on the intrinsic justice of a particular case in the light of the overriding objective. 52. What I have said so far applies to original first instance decisions. Those decisions are necessarily made in the exercise of the broad discretion to which I have referred. If a party seeks to appeal such a decision, as is the case before us, this court applies what Lord Woolf MR said in Biguzzi at 1934F: “Under that approach judges have to be trusted to exercise the wide discretions which they have fairly and justly in all the circumstances, while recognising their responsibility to litigants in general not to allow the same defaults to occur in the future as have occurred in the past. When judges seek to do that, it is important that this court should not interfere unless judges can be shown to have exercised their power in some way which contravenes the relevant principles.” “Earlier authorities are no longer generally of any relevance once the CPR applies.” “Under that approach judges have to be trusted to exercise the wide discretions which they have fairly and justly in all the circumstances, while recognising their responsibility to litigants in general not to allow the same defaults to occur in the future as have occurred in the past. When judges seek to do that, it is important that this court should not interfere unless judges can be shown to have exercised their power in some way which contravenes the relevant principles.”
[88]Asiansky was concerned with an appeal from a decision to strike out the claim on two grounds, for breach of an order of the court requiring the case to be set down for trial and under Birkett v James. As to the first, it was common ground that there was a breach of an order, so that CPR 3.4(2)(c) applied. At [40], Clarke LJ referred to a passage in Biguzzi at 1933 where Lord Woolf explained that the advantage of the CPR over the previous rules was that the court’s powers were now much broader. In many cases there will be alternatives which enable a case to be dealt with justly without taking the draconian step of striking the case out. Lord Woolf had gone on in Biguzzi to say that there are alternative powers to striking out to deal with delay. He said that in a great many situations those other powers will be the appropriate ones to adopt because they will produce a more just result. In considering whether a result is just, the courts are not confined to considering the relative positions of the parties. They have to take into account the effect of what has happened on the administration of justice generally, which takes into account the effect on the court’s ability to hear other cases. It will also involve taking account of the need for the courts to show by their conduct that they will not tolerate the parties not complying with dates.[89]At [43] Clarke LJ referred to [45], [46], [50] and [51] of Purdy in support of the conclusion that the CPR contained more flexible remedies for breaches of the rules than the earlier rules of court. At [48] to [49] he said this:
“48. It is no longer appropriate for defendants to let sleeping dogs lie: cf. Allen v McAlpine (Sir Alfred) & Sons [1968] 2 QB 229. Thus a defendant cannot let time go by without taking action and then later rely upon the subsequent delay as amounting to prejudice and say that the prejudice caused by the delay is entirely the fault of the claimant. Such an approach would in my judgment be contrary to the ethos underlying the CPR, quite apart from being contrary to paragraph 2.7 of the Part 23 Practice Direction. One of the principles underlying the CPR is co-operation between the parties. 49. However that may be, I recognise that in this case the CPR did not come into force until 26th April 1999, some three months after the claimants should have set the action down for trial pursuant to the order of 1st December 1998. The essential question in every case is: what is the just order to make, having regard to all the circumstances of the case? As May LJ put it, it is necessary to concentrate on the intrinsic justice of a particular case in the light of the overriding objective. The cases to which I have referred emphasise the flexible nature of the CPR and the fact that they provide a number of sanctions short of the draconian remedy of striking out the action. It is to my mind important that the master or judge exercising his discretion should consider alternative possibilities short of striking out.”
[90]Optiemus submitted that Asiansky was concerned with applications under CPR 3.4(2)(c) for breaches of rules or orders, and that a different approach was required for cases of Grovit abuse of process under CPR 3.4(2)(b). While it is correct that Asiansky was concerned with a breach of an order, I do not accept the submission that Clarke LJ’s observations are inapplicable to striking out for Grovit abuse. First, the court’s reasoning in Asiansky was that striking out was a draconian remedy and that there were other weapons in the CPR armoury. This is as true of an application to strike out for Grovit abuse case as it is of any other strike out application. Second, Clarke LJ adopted the reasoning of May LJ in Purdy which was a case of Grovit abuse. He also referred to a case of abuse in [51], albeit not one of Grovit abuse. Third, for reasons expanded on below, I do not think that there is a coherent basis for placing Grovit abuse in an insulated silo, requiring a distinct approach from other strike out applications. Indeed it is noteworthy that the commentary in Civil Procedure 2026 does not suggest that there is such a clear divide between CPR 3.4(2)(b) and (c), stating at [3.4.1] (p.92) that ground (c) can be invoked “where the abuse lies not in the statement of case itself but in the way the claim or defence (as the case may be) has been conducted”.[91]In 2020 this court conducted a careful review of the authorities in Asturion. Arnold LJ, who gave the lead judgment, brought out at [64] that the analysis of cases of this kind required two stages. The first was whether there was abusive conduct. The second was whether the court in exercising its discretion should strike the claim out. This helpful analytical structure had not always been fully articulated in the earlier cases. Arnold LJ decided that the court below had been right to conclude that the claimant’s conduct was not an abuse of process because its reason for delaying the claim was objectively reasonable. However he went on to say in [79] that if that was wrong “the question would remain as to whether he was entitled to exercise his discretion not to strike out the claim”. There were “lesser sanctions available to the court which were more proportionate to the abuse”. The court “could have imposed tight directions to trial, including unless orders against Asturion, and it could have imposed a costs sanction”. Hence striking out would have been a disproportionate response.[92]Optiemus submitted that Arnold LJ’s reasoning on the second stage of the analysis was obiter. That may strictly be correct but it is persuasive. Moreover in my judgment it reflects the approach of earlier authorities (including that of May LJ in Purdy, though that case was not cited in Asturion).[93]Optiemus naturally relied on the decision of Richards J in Watford. This is the only post-CPR case which has referred to Chettle, a tribute to the industry of counsel in that case. Richards J explained in [35] that the claimant had not suggested that in referring to the need for compelling reasons, Aldous LJ was expressing only an evaluation on the facts before him. Richards J treated this as an acceptance that the passage was capable of amounting to a general statement of law. For the reasons already given, I respectfully consider that the relevant passage cannot properly be read in that way.[94]Richards J also concluded that he was bound by the reasoning in Chettle despite the subsequent advent of the CPR. He noted that the discussion of stage two of the analysis in Asturion was obiter, that the CPR did not throw all of the pre-CPR law overboard, and that Arbuthnot Latham, which referred to Grovit, was decided in anticipation of the CPR. He concluded that the introduction of the CPR, with its recognition of the effect of delay on other court users, was not intended to dilute the proposition in Grovit that strike-out would frequently happen where there was abusive delay. I respectfully disagree. As already set out, in Purdy this court explained that the CPR introduced further and alternative remedies for abusive conduct. The CPR also embedded the concept of proportionality in all case management decisions. They underscored the importance of promoting expedition in the prosecution of proceedings and the need to comply with rules and orders. They required the court to give attention to the position of other court users. This was a new code and represented a culture change. Reference to authorities under the former rules is generally no longer relevant. As May LJ explained in Purdy, it is necessary to concentrate on the intrinsic justice of a particular case in the light of the overriding objective. While Grovit remains an important authority in that it identified a particular species of abuse of process, it says next to nothing about the approach to the second, discretionary, stage of the analysis. The post-CPR cases have explained the proper approach to that issue, by emphasising the overriding objective, the range of case management responses, and the central role of proportionality.[95]As already explained, in Lloyd HHJ Keyser KC declined to follow Watford. His reasoning is impressive and persuasive. Nothing would be served by repeating it at length. It is sufficient to say that I agree with his overall conclusion (in [67]) that the approach established by the cases is to exercise the discretion in accordance with the overriding objective and make such order as is just and proportionate on the given facts. Clearly, the fact that a party has abused the court’s process, and the seriousness of any abuse, will be relevant factors in that overall evaluation.[96]I also specifically agree with the following passage at [68] where HHJ Keyser KC said:
“Having said all this, I respectfully think that Richards J was correct to be concerned at the possibility that the approach to the exercise of discretion under the CPR might be misunderstood to have drawn the teeth from the court's response to abuse of process. Grovit abuse is an inherently serious matter, both because it involves a subjective intention that is repugnant to the proper conduct of litigation and because of its effect on the efficient administration of the justice system as a whole and individual cases in particular. The overriding objective itself identifies the need to ensure that cases are dealt with expeditiously and fairly and the importance of having regard to the resources of the court and the calls of other court users. Further, the jurisdiction to strike out for Grovit abuse specifically does not depend on prejudice to the defendant in the particular case. For my part, I should be hesitant to say, with the deputy judge in Quaradeghini [Sc. Quaradeghini v Mishcon de Reya [2019] EWHC 3523 (Ch), [2020] 4 WLR 34], that it will be “relatively rare” that the court will respond in the first instance by striking a claim out; I should be equally reluctant to call strike-out the “normal” approach. Sometimes it will be the just and proportionate response and sometimes it will not be. This is a matter for the court in the light of all the circumstances of the case. In my respectful view, the judgment of Clarke LJ in Asiansky, with its reference to Biguzzi and to the observations on that case by May LJ in Purdy v Cambran, shows how the matter ought to be dealt with.”
[97]Finally, Optiemus placed some weight on the observation of HHJ Emma Kelly in SNV & Ors v Al Khayyat & Ors [2025] EWHC 3265 (KB), [2026] 4 WLR 23 at [70] to the effect that the modern approach to case management under the CPR is the antithesis of endorsing abuse of process. That is no doubt correct as a generality, but I do not read the passage as seeking to set out or refine the legal test.

The judge in the present case expressed the test in this way:

“Under the CPR, the proper approach to the exercise of that discretion does not depend on “compelling reasons”, but on the application of the principles that govern the court’s exercise of such discretion under the CPR, including proportionality and the overriding objective. The result of the exercise will "frequently" be that the claim will be struck out. But that is because that will "frequently" be what the overriding objective requires, not because there is some special test of “compelling reason”.”
[99]In the light of my review of the CPR and the caselaw I think this is a correct expression of the test on the authorities.[100]There are other reasons of principle supporting this conclusion. First, as the judge said, the imposition of a hard-edged test of compelling reasons as an overlay on the broad discretionary powers given by the CPR would be incongruous.[101]Second, Grovit abuse covers a wide spectrum of cases, more or less flagrant. The court has a duty under the CPR to exercise its powers in accordance with the overriding objective, which embraces a number of elements which do not always point the same way; imposing a compelling reasons requirement across the board would limit the court’s ability to meet this obligation.[102]Third, if accepted, Optiemus’s argument would lead to cases of Grovit abuse forming a self-contained category in two respects. The first is it would put applications to strike out for Grovit abuse on a different footing from applications under CPR 3.4(2)(c) for cases of breach of rules or orders. In my judgment this would be unprincipled and arbitrary. Some cases of breaches of a rule or an order may be so serious as to affect the fairness of the trial. They may also be contumelious. An example would be the deliberate and wholesale destruction of documents. Indeed such conduct may in some cases constitute an abuse of the process. But, as Optiemus accepted, on applications to strike out for such breaches the approach in Asiansky applies.[103]The second respect in which the recognition of a compelling reasons test would create unprincipled distinctions is that it would create a separate approach for one specific form of abuse of process which does not apply to other, possibly more egregious, forms. In this regard, in Pliego v Astor Asset Management 3 Ltd [2026] EWCA Civ 940 this court was concerned with a particularly serious form of abuse known as privilege hunting (i.e. where a party obtains or seeks to obtain an opponent’s confidential and privileged information by dishonest means). The claimant had used Black Cube, an investigation firm, to target the defendants’ solicitor and induced him to disclose sensitive and ostensibly privileged information about the impact of the freezing orders on the defendants, the defendants’ views of the case and their settlement strategy. Black Cube recorded the discussions and the claimants used the recordings to apply to the court seeking summary judgment. The defendants applied to strike out the claim. The judge decided that the conduct was abusive but that the appropriate response was not to strike out, which he thought was disproportionate, and to defer to a later hearing the question of the extent to which the claimants could use the material. Instead he dismissed the summary judgment application. The Court of Appeal upheld the judgment but decided that the proportionate response was to discharge freezing orders obtained by the claimants.[104]Having endorsed the judge’s description of claimants’ conduct as “an affront to justice and inimical to the fundamental norms and values of civil litigation in this jurisdiction”, Males LJ turned to consider the question of how the court should respond. At [82] he said this:
“Once the conclusion is reached that the claimants’ conduct was abusive, the question arises, how should the court respond? That must depend on all the circumstances of the case, but before turning to those circumstances it is necessary to consider what the court is seeking to achieve. I would identify three principles. First, the objective is not to punish the abusive party, but to protect the court’s own process, which exists for the wider administration of justice and is not solely concerned with the outcome of any particular case. Accordingly the court has an interest in protecting its process by an appropriate response which is independent of the interests of the victim of the abuse. Second, protection of the court’s own process includes an element of deterrence, so that others are not tempted to abuse the process of the court in a similar way. Third, the court’s response should be proportionate to the conduct in question. In some cases, however, the abuse may be such that it is appropriate to speak of a party having forfeited its right to have its claim (or defence) determined. The court has a broad discretion as to how best to give effect to these principles, with which an appellate court will only interfere in the limited circumstances in which it will interfere with any other exercise of discretion by a first instance judge.”
[105]This approach, which includes the need to consider all the circumstances, the wider administration of justice, and proportionality, is consistent with that adopted by the judge in the present case.[106]Males LJ rejected the defendants’ submission that in a case of dishonestly obtaining privileged information, the court should strike out in the absence of very good reason to do otherwise. At [91] he said that there was no principled reason why privilege hunting should attract this particularly draconian remedy as a default rule when other equally culpable forms of abuse do not. He gave the example of the deliberate suppression of documents, or the dishonest exaggeration of the claim, or the giving of perjured evidence.[107]Similar reasoning applies here. Optiemus emphasised that Grovit abuse involves a finding that the claimant deliberately decided not to progress a claim to its conclusion. That may be so, but Grovit abuse is not inherently more egregious than the examples of abuse given by Males LJ, which involve dishonesty and even corruption. If there was no justification for a default rule of “very good reason” in Pliego, there is still less room for the creation of one for Grovit abuse. Moreover, as Males LJ stated in [91], such a presumptive rule would become the first, rather than the last, resort.[108]Fourth, I agree with BlackBerry that a compelling reasons test is likely to lead to further uncertainty and litigation. The phrase is not a term of art. It is used in the CPR Parts 24 (summary judgment) and 52 (permission to appeal) but its use in these contexts does not throw any helpful light on how it would be interpreted in the current context. There is no need to introduce this further element to the test.[109]More generally the law would not be well served by the recognition of a distinct default or presumptive rule for one particular form of abuse of process which does not apply to other forms of abuse (or indeed to other conduct potentially meriting the striking out of a claim). That would lead to an a priori classification of cases, and unnecessary and costly disputes as to which side of a boundary a particular abuse fell. Such an approach goes against the grain of Part 1 of the CPR, which applies generally to the CPR. It may also be difficult to achieve in practice. There are many cases which involve both unjustified delays amounting to Grovit abuse and breaches of rules or orders of the court. The application to strike out is to be approached in the round, applying the approach set out in cases such as Purdy, rather than by an exercise in pigeon-holing.[110]For these reasons I would reject ground (1) of the appeal. I have summarised the judge’s statement of the principles in [8] of the judgment (see [‎37] above). I would endorse that summary. I also agree with his conclusion on this point in [14] of the judgment (see [‎40] above).[111]Ground (2) contends that even if the judge was correct in not adopting the compelling reasons test, he should have taken account of the absence of compelling reasons or the seriousness of the abuse when deciding whether to strike out the claim. Optiemus contended that the judge’s approach was wrong because he failed to recognise the seriousness of the Grovit abuse and that the natural response of the court is to strike out the claim. He effectively treated the second stage with a clean slate. The two stages are intimately connected, not separate.[112]I am unable to accept this challenge to the judgment. When it comes to the exercise of the discretion at the second stage, the court must consider (among all the other factors) the length of the delay and the absence of an objectively reasonable justification: the court must consider the nature and seriousness of the abusive conduct. There can be no doubt on a fair reading of the judgment as a whole that the judge appreciated both these features.[113]To the extent that Optiemus is seeking to establish that in every case where the court finds a Grovit abuse the claimant has the burden of exonerating itself by showing compelling reasons, this ground amounts to no more than the argument already addressed under ground (1), and I reject it for the reasons already given. To the extent that it is a complaint about the weight that the judge gave to the length of the delay and the absence of good reasons for BlackBerry’s decision not to pursue the claim during the relevant period, I am unable to accept that there was any error in the judge’s approach to the exercise of his discretion. The judge plainly had the length of the delay and the absence of an objective justification firmly in mind. He decided that the claimant had abused the process of the court. He also expressly had regard to the importance under the overriding objective of ensuring that proceedings are dealt with expeditiously and fairly.[114]Optiemus contended that the judge’s approach entails that, in the absence of a finding of prejudice, it would be highly unlikely that a claim would be struck out. I disagree. On the judge’s approach the court will consider whether to strike out in view of all the circumstances of the case, of which the nature and extent of the prejudice to the defendant is one factor. Others include the seriousness of any abuse, the extent to which the case will proceed in an orderly fashion and the alternatives to striking out, including conditions as to interest and costs. Optiemus also criticised the judge’s observation that BlackBerry’s abuse was not of the “most serious kind” as it did not involve the warehousing of a number of claims. Optiemus suggested that the judge was saying that the remedy of striking out would be confined only to the worst cases of warehousing. I do not think that is a fair reading of the judgment. In [111] the judge enumerated a summary of the principal factors in the particular case that he was weighing in the balance. He is not to be read as setting out a series of decisive tick-box criteria for other cases - or as setting a threshold that needed to be crossed before striking out would be ordered.[115]I would therefore dismiss ground (2).

Ground (3)

[116]Ground (3) complains about the judge’s factual and evaluative conclusions. Optiemus’s first complaint under this head concerns the judge’s treatment of the evidence about Optiemus’s witnesses. Optiemus’s submissions on appeal concentrated on three key witnesses, Vineet Bhatia, who died in September 2021, Vikash Agarwal, an assistant general manager in the product team, who left Optiemus in July 2021, and Arvind Kumar, the manager of software testing, who left in May 2021. Optiemus submitted that the judge failed to engage properly with Mr Agarwal and Mr Kumar and that he failed to understand the evidence about when they left.[117]I agree with BlackBerry’s submission that the judge’s conclusions about the witnesses were rationally supportable on the evidence. The judge found that if the case had been properly progressed Mr Bhatia would have been unlikely to be thoroughly proofed before his death in September 2021. That conclusion was supportable: if BlackBerry had progressed the summary judgment application in September 2020 it would probably have taken some time to effect service under the Hague Convention – including because the process might well have been slower in India owing to the pandemic, as the judge found. The judge noted that Optiemus had not taken any steps before Mr Bhatia’s death in September 2021 to obtain his evidence. He was entitled to conclude on the evidence that if BlackBerry had got on with things in September 2020, proceedings would not have progressed by September 2021 to the stage where Optiemus’s approach to evidence gathering would have been materially different. This conclusion was open to the judge. The judge did not address the positions of Mr Bhatia and Mr Agarwal separately. However they left Optiemus in May and July 2021. The judge’s reasoning about Mr Bhatia logically applies to them, but with greater force as they left some months before Mr Bhatia died. On his findings, the case would not have progressed to the stage where Optiemus would have been preparing evidence for the proceedings.[118]At the end of the passage of the judgment dealing with the witnesses the judge also concluded at [89] that this was not going to be a case that would turn on vivid memories of recent events and that it was always one with a strong documentary and expert element. His findings about the potential prejudice to Optiemus from the absence of proofs of evidence from Messrs Bhatia, Agarwal and Kumar have to be read in light of this general conclusion. Optiemus complains about the judge’s conclusion in [89]. It submitted that the issue was not raised by the parties. I am unable to accept this. When assessing the potential for prejudice arising from the possible absence of witnesses, the judge was entitled (indeed bound) to consider the nature of the disputes and the extent to which witness testimony would play a part in the fact finding exercise at trial and Mr Morrison confirmed that he made submissions on this issue (the transcript for the relevant day not being available for technical reasons). Moreover BlackBerry emphasised the significance of the documentary record and noted that it had preserved the relevant documents in accordance with its obligations. The judge was entitled on the evidence to reach this evaluative conclusion and Optiemus has not established any relevant flaw in his reasoning.[119]Optiemus submitted next that the judge wrongly gave little weight to the evidence concerning its historical approach to accounting provisions. When the claim was raised Optiemus made a provision for it in its accounts for 2018/19 and 2019/20. Optiemus said that when the case was not pursued Optiemus took an accounting decision to derecognise it. The Grovit abuse caused prejudice to its shareholders who bought shares on the basis of accounts which contained no provision. Optiemus contended that the judge wrongly dismissed this factor on the basis that there was no evidence as to the link between the Grovit abuse and the removal of the provision. This was wrong as there was evidence from Mr Rabinowicz, Optiemus’s solicitor, that the provision was removed because Optiemus considered the claim to be at an end when it did not hear from BlackBerry.[120]I am unable to accept this challenge to the judge’s reasoning. The judge referred to the relevant evidence in [97]. The judge then decided that Optiemus’s accounts gave rise to unanswered questions, which he set out at [100]. The judge correctly said that Optiemus had not grappled with these questions. His conclusion was rationally supportable. The judge did not overlook the evidence; he simply did not regard it as weighty. It is not for this court to undertake the weighing exercise afresh in the absence of an identifiable error of the relevant kind.[121]Optiemus contended that the judge erred in relation to the prejudice arising from the failure to bring forward the amendments several years earlier. Its argument was as follows. The proposal to make the amendments was only made on 19 June 2025, in respect of fees said to have fallen due in June 2020, June 2021 and June 2022. Optiemus believed throughout that the parties’ agreement was at an end in 2019. Had Optiemus understood that BlackBerry was contending that the agreement was still effective, it would have sent a termination notice without prejudice to its position that the agreement had already been terminated. But for the delay there would have been a summary judgment hearing or trial in 2021 or 2022 and BlackBerry would have had to make the amendment application at that time. Optiemus would then have taken unequivocal action, terminating the agreement so that the further fees that arose in respect of the periods to June 2021 and June 2022 would not have arisen. The judge was wrong to conclude that these were issues of substance and not procedure. This failed adequately to address the prejudice to Optiemus, namely, the fact that it did not serve an unequivocal termination notice.[122]I am unable to accept this challenge. The judge properly concluded that the question whether Optiemus could and would have served a termination notice and thereby improved its position goes to the substantive merits. The issue whether it could have avoided the payment of licence fees by having served such a notice depends on the construction of the contractual documentation. I also agree with BlackBerry’s submission that these points do not amount to material prejudice. The causes of action for the further licence fees had not even accrued in 2020 when the relevant delay began. If the proceedings had been discontinued then the claims for the further fees could have been brought in a separate claim as of right.[123]The fourth complaint under this ground is that the judge erred in relation to interest. He disallowed interest on the originally claimed sums for the period of delay, but refused to do so on the fees introduced by amendment. This failed to recognise that the same logic applies to the sums added by amendment. Had the claim been properly pursued those sums would have been introduced into the case much earlier. BlackBerry has claimed more than $5.6m of interest on sums introduced by amendment which should have been introduced in 2020, 2021 and 2022 respectively. Optiemus described this as concrete prejudice. The judge considered this argument and rejected it at the consequential hearing. He concluded that the interest on the sums claimed by amendment was not caught by the Grovit abuse because even if the judge had refused to lift the stay, BlackBerry would have been free to pursue them in separate proceedings. He also held that Optiemus would be able to argue that the trial judge should adjust any award for interest because the claims were not brought until 2025. In my judgment this way of addressing the question of interest was within the scope of the judge’s discretion and was reasonably open to him.[124]For these reasons I would dismiss the appeal under ground (3).

Ground (4)

[125]Optiemus contends the judge wrongly took account of irrelevant factors or failed to take relevant factors into account.[126]The first is that he failed to take account of prejudice caused to the court and other court users. I am unable to accept this suggestion. The judge specifically referred at [8(i)] of the judgment to the need to consider the effect of abusive delays on the administration of justice. He also referred in [111(c)] to the importance of enforcing rules and practice directions. He also referred repeatedly to the overriding objective. It is simply unreal to suppose that the judge did not have these features of the case in mind.[127]Optiemus also contended that the judge gave undue primacy to the issue of prejudice and mistakenly thought that the absence of concrete prejudice to it was determinative. This is untenable. The judge directed himself in [15] of the judgment that prejudice was not an essential ingredient of the analysis. The reason why he addressed the issue in some detail is that Optiemus heavily relied on it at the hearing. In any case the presence or absence of prejudice to the defendant is clearly a potentially material factor when it comes to the second stage of the analysis. The judge listed a number of factors in [111] and certainly did not treat the absence of concrete prejudice as decisive.[128]Optiemus contended, second, that the judge wrongly took account of Optiemus’s own conduct in failing to respond to the claim and that this was an irrelevant factor in the exercise of the court’s discretion: see Arbuthnot Latham at p. 1435. I agree with BlackBerry’s submission that the passage in question was concerned with the first stage of the inquiry, i.e. whether there has been an abuse of the process, rather than the second, i.e. what sanction should be imposed for abuse. In my judgment at the second stage it is necessary to take account of the conduct of both parties (as well as the impact on court resources and the need to promote the expeditious and efficient conduct of proceedings). When considering the response to Grovit abuse the court is required to take into account all of the circumstances in the light of the overriding objective. One aspect of this is that it is no longer open to a defendant to allow sleeping dogs to lie. This factor may not carry much weight in a given case but the weighing of factors is a matter for the judge.[129]I would therefore dismiss ground (4).

Ground (6)

[130]As already explained Optiemus accepted that this ground turns on the court’s decisions on grounds (3) and (4). I have already explained that I would dismiss them. But I would add that in [111] the judge identified the factors that led him to refuse to strike out the claim. This passage shows a careful weighing of factors, which pulled in different directions. The judge recognised that his decision was borderline. However in my judgment his overall conclusion was rationally open to him. It is possible that another judge might have struck out the case given the length of the delay and the paucity of BlackBerry’s explanation. But different judges may reasonably reach different views on the same set of facts, and under our procedural system the primary responsibility for reaching such discretionary decisions is vested in first-instance judges subject only to appellate review in a case of error (and not mere difference of view over outcomes). It is not for this court to interfere simply because it might have reached a different view had it been in the shoes of the first instance judge. Optiemus argued that if the judge’s decision was upheld it would send out a baleful message to other litigants. I do not agree. Each case turns on its own facts and circumstances and the judge applied well-established principles. Though it need hardly be said nothing in this judgment should be taken to dilute the need for efficiency and expedition in the conduct of civil litigation: indeed this is clear from the express terms of the overriding objective.[131]For these reasons I would dismiss ground (6).

Ground (7)

[132]Optiemus agreed that ground (7) of the appeal stands or falls with the earlier grounds, as the application to lift the stay was the other side of the strike-out coin. In the light of my earlier conclusions this ground must be dismissed.

Disposal

[133]For these reasons I would dismiss the appeal. The judge applied the right test and was entitled to reach the conclusions he did in his impressive judgment. Lord Justice Foxton:[134]I agree.

Lord Justice Jeremy Baker:

[135]I also agree.

Cited in 1 later judgment