Principles
30 There did not appear to be any disagreement about the applicable principles. In two relatively recent decisions, UBS AG v Tyne (2018) 265 CLR 77 (UBS AG) and Tomlinson v Ramsey Food Processing Pty Ltd (2015) 256 CLR 507 (Tomlinson), the High Court identified a number of important points of principle when considering whether to stay a proceeding as an abuse of process:
(a) Abuse of process is insusceptible of formulation comprising closed categories. It involves a "broad, merits-based judgment which takes account of the public and private interests" and requires a consideration of all the facts of the case: UBS AG at [7] (Kiefel CJ, Bell and Keane JJ) quoting Johnson v Gore Wood & Co [2002] 2 AC 1 at 31 (Lord Bingham of Cornhill) (Johnson);
(b) The court's power to stay a proceeding as an abuse of process is enlivened where either of two conditions are met:
(i) where the use of the court's procedures occasions unjustifiable oppression to a party; or
(ii) where the use serves to bring the administration of justice into disrepute: UBS AG at [1] (Kiefel CJ, Bell and Keane JJ), [62] (Gageler J), [92] (Nettle and Edelman JJ);
(c) The principles governing an abuse of process are broader and more flexible than res judicata or issue estoppel: Tomlinson at [25] (French CJ, Bell, Gageler and Keane JJ). Abuse of process is also broader and more flexible than an estoppel of the kind identified in Port of Melbourne Authority v Anshun Pty Ltd (1981) 147 CLR 589 (Anshun estoppel): UBS AG at [62] and [68] (Gageler J);
(d) To establish an abuse of process, is not necessary that the second case should involve the same parties as the first case or their privies: Tomlinson at [17] (French CJ, Bell, Gageler and Keane JJ), UBS AG at [63] (Gageler J);
(e) Abuse of process may be invoked to prevent attempts to litigate a claim that should have been litigated in earlier proceedings, or which ought reasonably to have been made or raised in the earlier proceeding, as well as attempts to re-litigate a claim that has been determined: Tomlinson at [26] (French CJ, Bell, Gageler and Keane JJ); UBS AG at [39] and [41] (Kiefel CJ, Bell and Keane JJ);
(f) It is not necessary to show an additional element such as collateral attack or dishonesty, although those elements may assist in demonstrating an abuse of process: UBS AG at [67] (Gageler J), quoting Johnson at 31;
(g) The test of whether the claim should have been brought in earlier proceedings demonstrates the overlap between abuse of process and Anshun estoppel: Tomlinson at [25]-[26] (French CJ, Bell, Gageler and Keane JJ); UBS AG at [68]-[69] (Gageler J);
(h) Not every claim that could have been brought in an earlier proceeding constitutes an abuse of process when raised in a later proceeding. However, where the claim should have been brought in the earlier proceeding it will be an abuse of process even though it may not be precluded by an estoppel: UBS AG at [43] (Kiefel CJ, Bell and Keane JJ), [110]-[111] (Nettle and Edelman JJ), [127] (Gordon J); Tomlinson at [26] (French CJ, Bell, Gageler and Keane JJ);
(i) In UBS AG, Gageler J offered an alternative formulation of the test, preferring to state the relevant public interest as the timely and efficient administration of justice, rather than focussing on oppression and disrepute: [72]. Gageler J found that abuse of process was demonstrated because a party was required to respond to a proceeding which it had already gone to the cost and expense of bringing to completion (even though there had been no final determination on the merits), and the public interest in the timely and efficient resolution of claims: [75];
(j) The test of what constitutes an abuse of process must be interpreted and applied in light of the overarching purpose of civil litigation - to facilitate the just resolution of disputes as quickly, inexpensively and efficiently as possible: UBS AG at [6], [32], [34], [38], [45] (Kiefel CJ, Bell and Keane JJ), [107]-[108] (Nettle and Edelman JJ), [139] (Gordon J). This requires the Court to take into account factors wider than the private interests of the parties to the dispute: UBS AG at [38] (Kiefel CJ, Bell and Keane JJ). In UBS AG, the plurality found that "hiving off" the claim of one party with the view of bringing it after the determination of the first proceeding was the antithesis of the discharge of the duty imposed on parties to civil litigation: [55];
(k) Relevant factors include significant delay in resolving the dispute, increased costs and the inconvenience of having to deal with the matter again after lengthy litigation: UBS AG at [33] (Kiefel CJ, Bell and Keane JJ);
(l) Undue vexation does not arise solely where there has been a judgment on the merits. Vexation also arises from both significant delay and being required to deal again with claims that should have been resolved in the first proceeding: UBS AG at [46], [58] (Kiefel CJ, Bell and Keane JJ);
(m) The staged conduct of what is in fact one dispute, with the attendant duplication of court resources, delay, expense and vexation, is likely to give rise to the perception that the administration of justice is inefficient, careless of costs and profligate in its application of public money: UBS AG at [59] (Keifel CJ, Bell and Keane JJ); and
(n) Even though, having regard solely to the interests of the party deciding to split the case, that may be a reasonable approach, a different determination may be reached having regard to the interests of the other party and the timely and efficient administration of justice: UBS v Tyne at [80] (Gageler J), cf [106], [120] (Nettle and Edelman JJ).
31 It can be added there is no requirement to establish moral delinquency or punishment of a miscreant or blameworthiness in the sense of an improper purpose or guilty state of mind to invoke the abuse jurisdiction: see Mineralogy Pty Ltd v Sino Iron Pty Ltd [No 2] [2021] WASCA 105, [164]. Once enlivened, there is no discretionary aspect.
32 Prior to the High Court's decision in UBS AG, a number of first instance and appellate courts considered allegations of abuse of process in circumstances where the same or similar facts were to be raised in subsequent proceedings, but one of the parties to the proceeding were different. These cases often (but not always) involved the party that lost in the first proceeding seeking to run the same point in the second proceeding.
33 The court was taken to a handful of authorities where the applicant to stay the proceedings was not a party to the initial proceedings.
34 Rippon v Chilcotin Pty Ltd (2001) 53 NSWLR 198 is one authority where the party moving to halt the proceedings had not been a party to the previous proceeding. The original proceedings were bought by the purchaser of a business against the vendor, alleging breach of warranty as to the accuracy of financial statements annexed to the contract of sale, and statutory misleading and deceptive conduct. The plaintiffs were successful only in the contractual claim, with the judge finding that they had relied on the warranty rather than the accuracy of the figures. The purchasers initiated another action in negligent misrepresentation against the accountants who had prepared the financial statements. The accountants brought an application for dismissal of proceedings on the basis of abuse of process, which was granted by the New South Wales Court of Appeal.
35 The Court of Appeal explained that the accountants were not parties to the previous action, nor were they privies of the vendor, nor did they have the benefit of any cause of action or issue estoppel.
36 The Court ultimately found at 202-3:
The purchasers could have included their claim against the accountants for negligent misrepresentation… in their Supreme Court proceedings. They knew that the figures came from the accountants and there would have been common issues of reliance, falsity and damage. If the claims based on the earlier figures were not worth pursuing against the vendor they would not be worth pursuing against the accountants either.
In those circumstances it could have been said, in the language of the joint judgment in Port of Melbourne Authority v Anshun, that the claims against the accountants were so relevant to the subject matter of the first action that it was unreasonable for the purchasers not to rely upon them in that action.
37 Another case to which the parties referred is Solak v Registrar of Titles (2011) 33 VR 40. The appellant alleged that someone had fraudulently obtained a loan in his name from BankWest, secured by a registered mortgage over the appellant's land. The appellant's claim against BankWest seeking to discharge the mortgage was dismissed, given the indefeasibility provisions in the relevant legislation. The appellant then instituted the second set of proceedings against the Registrar of Titles seeking an indemnity for loss suffered by reason of the registration of the mortgage. The trial judge granted the Registrar's application for summary dismissal of the proceedings on the basis of Anshun estoppel.
38 The Court of Appeal overturned the decision of the trial judge on another point, but proceeded to consider whether the Anshun estoppel principles applied at [67]-[68]:
This case is one of the relatively few cases where the party asserting Anshun estoppel in the second proceeding was not a party to the first proceeding. The High Court is yet to consider the principles applicable in this situation. However, in Redowood Pty Ltd v Link Market Services Pty Ltd Hodgson JA of the NSW Court of Appeal (with whom Mason P and Bryson AJA agreed) suggested that a stricter test should be applied:
In cases where the earlier proceedings and the later proceedings are between the same parties, as in Anshun itself, a finding of unreasonableness in not raising a matter in the earlier proceedings would almost inevitably mean that the later proceedings were oppressive and an abuse of process. Where the parties are different, the test of unreasonableness is still relevant; but in my opinion it must either be considered not conclusive, or else must be understood as involving unreasonableness of such a nature that the later proceedings against different parties are an abuse of process.
The court cautioned against applying Anshun estoppel too readily where the party asserting the estoppel was not a party to the first proceeding:
… [W]here a plaintiff may have alternative remedies against different parties, to suggest that a plaintiff should generally sue all of them, barring exceptional circumstances, would be to encourage complex and lengthy litigation, and promote the incurring of costs where there is no certainty that a Bullock or Sanderson order would be obtained.
… [P]laintiffs should be permitted reasonable latitude in deciding whether to sue just one defendant, or to join a number of defendants in alternative claims.
39 The Court then continued at [69], quoting Thomas LJ of the English Court of Appeal in Aldi Stores Ltd v WSP Group Plc [2008] 1 WLR 748 at [25]:
There is a real public interest in allowing parties a measure of freedom to choose whom they sue in a complex commercial matter and not to give encouragement to bringing a single set of proceedings against a wide range of defendants, or to complicate proceedings by cross-claims against parties to the proceedings. The freedom can and should be restricted by appropriate case management.