"45. The importance of the duty of disclosure has often been emphasised. It is the necessary corollary of the court being prepared to depart from the principle that I will hear both sides before reaching a decision, which is a basic principle of fairness. Derogation from that basic principle is an exceptional course adopted in cases of extreme urgency or the need for secrecy. If the court is to adopt that procedure where justice so requires, it must be able to rely on the party who appears alone to present the evidence and argument in a way which is not merely designed to promote its own interests, but in a fair and even- handed manner, drawing attention to evidence and arguments which it can reasonably anticipate the absent party would wish to make. It is a duty owed to the court which exists in order to ensure the integrity of the court's process. The sanction available to the court to preserve that integrity is not only to deprive the applicant of any advantage gained by the order but also to refuse to renew it. In that respect it is penal, and applies notwithstanding that even had full and fair disclosure been made the court would have made the order. The sanction operates not only to punish the applicant for the abuse of process, but also, as Christopher Clarke J observed in [Yugraneft], to ensure that others are deterred from such conduct in the future. Such is the importance of the duty that in the event of any substantial breach the court inclines strongly towards setting aside the order and not renewing it, even where the breach is innocent. Where the breach is deliberate, the conscious abuse of the court's process will almost always make it appropriate to impose the sanction."
"23. The starting point is that an applicant for an order on a without notice application must make full and frank disclosure of all material facts, that is, facts known to the applicant which might reasonably be taken into account by the judge in deciding whether to grant the application: R v Kensington Income Tax Commissioners ex parte Princess Edmund De Polignac[1917] 1 KB 486 , 514 (Scrutton LJ); Siporex Trade SA v Comdel Commodities Limited[1986] 2 Lloyd's Rep 428 , 437 (Bingham J); Brink's Mat Limited v Elcombe[1988] 1 WLR 1350 , 1356 (Ralph Gibson LJ). 24. It is for the court to determine what is material according to its own judgment and not the assessment of the applicant: Brink's Mat Limited v Elcombe . This means that if the court considers there to have been material non-disclosure, it is not an answer that the applicant in good faith took a different view, although that may affect the court's exercise of its discretion in deciding what to do in the light of the non-disclosure. It does not mean that an applicant is under a duty to disclose facts which could not reasonably have a bearing on the decision which the judge has to make. 25. Materiality therefore depends in every case on the nature of the application and the matters relevant to be known by the judge when hearing it. I was referred to a number of statements on the duty of disclosure in the context of applications for freezing injunctions. In such cases the court is being asked to make an order of an exceptional kind, prohibiting or restricting a defendant's use of its own assets before any adjudication has been made against it. Because of its draconian nature, it is a jurisdiction which requires great caution and a wide range of factors may have a bearing on the court's decision. 26. An application for permission to serve out of the jurisdiction is of a very different nature. The general principles about disclosure on without notice applications still apply, but the context is different. The focus of the inquiry is on whether the court should assume jurisdiction over a dispute. The court needs to be satisfied that there is a dispute properly to be heard (i.e. that there is a serious issue to be tried); that there is a good arguable case that the court has jurisdiction to hear it; and that England is clearly the appropriate forum. Beyond that, the court is not concerned with the merits of the case. 27. Authority supports this approach. In BP Exploration Co (Libya) Limited v Hunt [1976] 3 AER 879 (which concerned an application for leave to serve out of the jurisdiction) Kerr J said at 893: "
"The guidance given in Denton may be summarised as follows: a judge should address an application for relief from sanctions in three stages. The first stage is to identify and assess the seriousness and significance of the "failure to comply with any rule, practice direction or court order" which engages r.3.9(1). If the breach is neither serious nor significant, the court is unlikely to need to spend much time on the second and third stages. The second stage is to consider why the default occurred. The third stage is to evaluate all the circumstances of the case, so as to enable the court to deal justly with the application including r.3.9(1)(a) (b). The court also gave guidance as to the importance of penalising parties who unreasonably oppose applications for relief from sanctions."
"If a judge concludes that a breach is not serious or significant, then relief from sanctions will usually be granted and it will usually be unnecessary to spend much time on the second or third stages. If, however, the court decides that the breach is serious or significant, then the second and third stages assume greater importance."
"The Court of Appeal in Denton went on to state that litigation cannot be conducted efficiently and at proportionate cost without fostering a culture of compliance with rules, practice directions and court orders, and cooperation between the parties and their lawyers. Rule 1.3 provides that "the parties are required to help the court to further the overriding objective"
"Specific rules on related actions 1. An EU trade mark court hearing an action referred to in Article 124 other than an action for a declaration of non-infringement shall, unless there are special grounds for continuing the hearing, of its own motion after hearing the parties or at the request of one of the parties and after hearing the other parties, stay the proceedings where the validity of the EU trade mark is already in issue before another EU trade mark court on account of a counterclaim or where an application for revocation or for a declaration of invalidity has already been filed at the Office."
" Jurisdiction over infringement and validity The EU trade mark courts shall have exclusive jurisdiction: (a) for all infringement actions and — if they are permitted under national law — actions in respect of threatened infringement relating to EU trade marks; (b) for actions for declaration of non-infringement, if they are permitted under national law; (c) for all actions brought as a result of acts referred to in Article 11(2); (d) for counterclaims for revocation or for a declaration of invalidity of the EU trade mark pursuant to Article 128."