“[…] that which prevents a party to an action from asserting or denying, as against the other party, the existence of a particular cause of action, the non-existence or existence of which has been determined by a court of competent jurisdiction in previous litigation between the same parties. If a cause of action was determined to exist, i.e., judgment was given upon it, it is said to be merged in the judgment […]. If it was determined not to exist, the unsuccessful plaintiff can no longer assert that it does […].”
“[…] an extension of the same rule of public policy. There are many causes of action which can only be established by proving that two or more different conditions are fulfilled. Such causes of action involve as many separate issues between parties as there are conditions to be fulfilled by the plaintiff in order to establish his cause of action; and there may be cases where the fulfilment of an identical condition is a requirement common to two or more causes of action. If in litigation upon one such cause of action any of such separate issues as to whether a similar condition has been fulfilled is determined by a court of competent jurisdiction, either upon evidence or upon admission by a party to the litigation, neither party can, in subsequent litigation between one another upon any cause of action which depends upon the fulfilment of the identical condition, assert that the condition was fulfilled if the court has in the first litigation determined that it was not, or deny that it was fulfilled if the court in the first litigation determined that it was.”
“The mere presence of an arbitration clause is no defence to an action on the contract. An award following on the arbitration clause may be an answer to a claim, and it will be an answer where it deals with the claim. Ayscough [ v Sheed, Thomson & Co Ltd[1923] 39 TLR 206 ]’s case is an authority for that. But where, as in this case, the award does not deal with the claim but merely with the jurisdiction of the arbitrator, it is no answer.”
“4. Since the relevant legal principles are not in dispute I will set them out briefly. The principle of res judicata can be summarised as follows: where an issue has been litigated before a judicial body and determined as between the parties it cannot be reopened. It is binding as between them, and the parties are estopped from reopening it. The issue may be one of fact or of law. However, the parties are only bound by an issue which it was necessary for the court to determine in the earlier claim. In Arnold v National Westminster Bank plc[1991] 2 AC 93 , 105 Lord Keith of Kinkel observed that the principle applies where ‘a necessary ingredient in a cause of action has been litigated and decided and in subsequent proceedings between the same parties involving a different cause of action to which the same issue is relevant one of the parties seeks to reopen that issue’. 5. It follows, therefore, that a finding of fact by an earlier court which is not a ‘necessary ingredient’ in the earlier cause of action will not give rise to a ‘fact estoppel’. Moreover, a finding cannot be a necessary ingredient of a cause of action if the earlier court or tribunal did not have jurisdiction to decide the matter at all: see the observations of Sir Nicolas Browne-Wilkinson in O’Laoire v Jackel International Ltd (No. 2)[1991] ICR 718 , 729 when he said: ‘It is well established that there can be no estoppel arising out of an order or judgement given in excess of jurisdiction’.”
“It may very well be, as has been convincingly argued (Watt, ‘The Danger and Deceit of the Rule in Henderson v Henderson : A new approach to successive civil actions arising from the same factual matter’ [2000] 19 CLJ 287), that what is now taken to be the rule in Henderson v Henderson has diverged from the ruling which Wigram V‑C made, which was addressed to res judicata. But Henderson v Henderson abuse of process, as now understood, although separate and distinct from cause of action estoppel and issue estoppel, has much in common with them. 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 earlier 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 should have been raised before. As one cannot comprehensively list all possible forms of abuse, so one cannot formulate any hard 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.”
“However this may be, the difference to which I have drawn attention is of critical importance. 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 a 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 (1953). 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 Attorney General for Queensland[1979] AC 411 , 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 3 Hare 100 is abuse of process and observed that it ‘ought only to be applied when the facts are such as to amount to 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. There is, of course, no doubt that Mr Johnson could have brought this action as part of or at the same time as the company’s action. But it does not at all follow that he should have done so or that his failure to do so renders the present action oppressive to the firm or an abuse of the process of the court. As May LJ observed in Manson v Vooght[1999] BPIR 376 , 387, it may in a particular case be sensible to advance claims separately. In so far 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.”
“(i) Where A has brought an action against B, a later action against B or C may be struck out where the second action is an abuse of process. (ii) A later action against B is much more likely to be held to be an abuse of process than a later action against C. (iii) The burden of establishing abuse of process is on B not C or as the case may be. (iv) It is wrong to hold that because a matter could have been raised in earlier proceedings it should have been, so as to render the raising of it in later proceedings necessarily abusive. (v) The question in every case is whether, applying a broad merits based approach, A’s conduct is in all the circumstances an abuse of process. (vi) The court will rarely find that the later action is an abuse of process unless the later action involves unjust harassment or oppression of B or C.”