“… The underlying public interest is the same: that there should be finality in litigation and that a party should not be twice vexed in the same matter. This public interest is reinforced by the current emphasis on efficiency and economy in the conduct of litigation, in the interests of the parties and the public as a whole. The bringing of a claim or the raising of a defence in later proceedings may, without more, amount to abuse if the court is satisfied (the onus being on the party alleging abuse) that the claim or defence should have been raised in the earlier proceedings if it was to be raised at all. I would not accept that it is necessary, before abuse may be found, to identify any additional element such as a collateral attack on a previous decision or some dishonesty, but where those elements are present the later proceedings will be much more obviously abusive, and there will rarely be a finding of abuse unless the later proceeding involves what the court regards as unjust harassment of a party. It is, however, wrong to hold that because a matter could have been raised in early proceedings it should have been, so as to render the raising of it in later proceedings necessarily abusive. That is to adopt too dogmatic an approach to what should in my opinion be a broad, merits-based judgment which takes account of the public and private interests involved and also takes account of all the facts of the case, focusing attention on the crucial question whether, in all the circumstances, a party is misusing or abusing the process of the court by seeking to raise before it the issue which could have been raised before. As one cannot comprehensively list all possible forms of abuse, so one cannot formulate any hard and fast rule to determine whether, on given facts, abuse is to be found or not. Thus while I would accept that lack of funds would not ordinarily excuse a failure to raise in earlier proceedings an issue which could and should have been raised then, I would not regard it as necessarily irrelevant, particularly if it appears that the lack of funds has been caused by the party against whom it is sought to claim. While the result may often be the same, it is in my view preferable to ask whether in all the circumstances a party's conduct is an abuse than to ask whether the conduct is an abuse and then, if it is, to ask whether the abuse is excused or justified by special circumstances. Properly applied, and whatever the legitimacy of its descent, the rule has in my view a valuable part to play in protecting the interests of justice.”
“… It is one thing to refuse to allow a party to relitigate a question which has already been decided; it is quite another to deny him the opportunity of litigating for the first time a question which has not previously been adjudicated upon. This latter (though not the former) is prima facie a denial of the citizen's right of access to the court conferred by the common law and guaranteed byArticle 6 of the Convention for the Protection of Human Rights and Fundamental Freedoms [Rome, 4th. November 1950]. While, therefore, the doctrine of res judicata in all its branches may properly be regarded as a rule of substantive law, applicable in all save exceptional circumstances, the doctrine now under consideration can be no more than a procedural rule based on the need to protect the process of the Court from abuse and the defendant from oppression. In Brisbane City Council v. A.-G. for Queensland[1979] AC 411 at p. 425 Lord Wilberforce, giving the advice of the Judicial Committee of the Privy Council, explained that the true basis of the rule in Henderson v Henderson is abuse of process and observed that it ‘. . . ought only to be applied when the facts are such as to amount to an abuse: otherwise there is a danger of a party being shut out from bringing forward a genuine subject of litigation.’ There is, therefore, only one question to be considered in the present case: whether it was oppressive or otherwise an abuse of the process of the court for Mr. Johnson to bring his own proceedings against the firm when he could have brought them as part of or at the same time as the Company's action. This question must be determined as at the time when Mr. Johnson brought the present proceedings and in the light of everything that had then happened. … Insofar as the so-called rule in Henderson v. Henderson suggests that there is a presumption against the bringing of successive actions, I consider that it is a distortion of the true position. The burden should always rest upon the defendant to establish that it is oppressive or an abuse of process for him to be subjected to the second action.”
“… prioritise options for legal action that involve holding individual executive and independent members to account in the High Court, as opposed to holding Public Health Wales liable in the Employment Tribunal wherever this is possible.”
“One of the consequences of this is that it appears that the claimant decided for a period of nearly 2 years from July 2010 until May 2012 that she could ignore the time limits for presenting a claim for suffering detriment as a result of whistleblowing. …”
“39. In my judgment the answer to that [the time point and the inconvenience caused thereby in resolving it] derives from the issues themselves. The claimant has prior to this claim brought four claims during the period covered by these allegations and on none of those occasions did she advance her whole case. In my judgment it is unjust harassment for a party to bring a succession of claims cherry picking small parts of its overall case but never until years later advancing that case in its entirety. Even had I not concluded that this claim did involve unjust harassment of the respondent I would have concluded that this was one of the rare cases in which the principle applied even in its absence, as there is a clear public interest in finality of litigation. For the same reason as set out above in my view the public interest equally justifies the conclusion that this claim involves an abuse of process. The simple fact is that in this case the claimant chose to bring four earlier claims and that at the point at which she brought those claims she made a deliberate choice not to bring claims that she could have brought and which it was open to her to have brought at that time. Although she is not now legally represented, the claimant was certainly legally represented both prior to July 2010 and as she herself has set out prior to September 2011, and appears to have had a large number of sources of legal advice. As is set out above at various points the claimant has made it explicitly clear that she has rejected the possibility of fixing the respondent with corporate liability in the employment tribunal, in favour of attempting to fix individuals with liability in the civil courts. Whilst that it is her right it does appear to me an abuse for a party which has deliberately chosen not bring its whole case forward despite having four earlier opportunities to do so, effectively to say that she has changed her mind and now wishes to do so. In my judgment that is an abuse of process in and of itself irrespective of whether it does or does not constitute unjust harassment of the other party. 40. In my judgment, applying the test as I have to and weighing all of those factors I have come to the conclusion that this is a case in which the doctrine should apply and in my judgment it is an abuse of process for the claimant to bring claims in respect of any alleged detriment suffered as a consequence of making a protected disclosure prior to 20 th January 2012.”
“… unjust harassment for a party to bring a succession of claims but cherry picking small parts of its overall case but never until years later advancing that case in its entirety.”
“… There was a process of grievance and grievance appeals ongoing and she wished to give the respondent an opportunity to remedy the problems, and to allow her to return to work free from harassment and victimisation, which at that stage that was all she required [sic]. She did not therefore want to bring a claim against the respondent in respect of these matters at that stage.”
“58. … the mere fact that the claimant has brought his second claim late, but in time, is not relevant to the question whether bringing the new claim in a second set of proceedings is an abuse of process. Of course, things may have happened during the period of delay which are relevant, but nothing of that kind is relied on in the present case.”
“… as Aldi again makes clear and as the Master of the Rolls stresses, a claimant who keeps a second claim against the same defendant up his sleeve while prosecuting the first is at high risk of being held to have abused the court's process. Moreover, putting his cards on the table does not simply mean warning the defendant that another action is or may be in the pipeline. It means making it possible for the court to manage the issues so as to be fair to both sides.”