Resolution
20 This is a difficult case. The argument was founded on res judicata, not issue estoppel or so-called "Anshun estoppel": Port of Melbourne Authority v Anshun Pty Ltd [1981] HCA 45; 147 CLR 589.
21 Subject to the influence of legislation, the status of a judgment or order by consent is not in doubt: it is a res judicata. Lord Blanesburgh, speaking for the Privy Council (Viscount Sumner, Lord Carson and his Lordship) said in Kinch v Walcott [1929] AC 482 at 493:
…an order by consent, not discharged by mutual agreement, and remaining unreduced, is as effective as an order of the Court made otherwise than by consent and not discharged on appeal.
22 In The Bellcairn (1885) 10 PD 161 at 165, Lord Esher MR said: "[a] judgment by the consent of the parties…is a binding judgment of the Court…". See also at 166 (Cotton LJ and Lindley LJ).
23 In Chamberlain v Deputy Commissioner of Taxation [1988] HCA 21; 164 CLR 502 at 508, Deane J, Toohey J and Gaudron J said:
The fact that a judgment is entered by consent may on occasion make it hard to say what was necessarily decided by the judgment, especially where it is the defendant who wishes to bring action at a later date…But the principle of res judicata holds good in such a case.
24 The nature of a res judicata is a "decision pronounced by [relevantly here] a judicial … tribunal with jurisdiction over the cause of action and the parties, which disposes once and for all of the fundamental matters decided, so that, except on appeal, they cannot be re-litigated between persons bound by the judgment.": Handley KR, Spencer Bower and Handley: Res Judicata (4th ed, LexisNexis, 2009) at 1[1.01]. The notion of "once and for all" embodies the requirements that the judgment or order be final.
25 Where an action has been brought and judgment entered on the action, no other proceeding may be maintained on the same cause of action. If the cause of action was recognised to exist in the judgment, it merges in the judgment and no longer exists; if it was found not to exist, the unsuccessful party may no longer assert that it does: Jackson v Goldsmith [1950] HCA 22; 81 CLR 446 at 466; Anshun 147 CLR 589 at 597 and 610 ff; Chamberlain v Deputy Commissioner of Taxation 164 CLR at 508 and 510-511; Macquarie Bank Limited v National Mutual Life Association of Australia Limited (1996) 40 NSWLR 543 at 556-557; Carl Zeiss Stiftung v Rayner & Keeler Limited (No 2) [1967] 1 AC 853 at 964, approved in Anshun 147 CLR at 597.
26 In Carl Zeiss [1967] 1 AC at 964 Lord Wilberforce approved of the expression of the matter by Lord Denning MR in Fidelitas Shipping Co Limited v V/O Exportchleb [1966] 1 QB 630 at 640 as "a strict rule of law that [a party] cannot bring another action against the same party for the same cause". In Anshun 147 CLR at 610 ff, Brennan J discussed the imprecision of the phrase "cause of action". However, here, there can be no doubt that, whether or not what is being discussed is a right or the facts upon which a right is based, the very same rights under the very same Act based on the same asserted factual connection is now sought to be maintained as was claimed in the earlier proceeding which was dismissed.
27 In Minero Pty Limited v Redero Pty Limited (unreported, Supreme Court of NSW, 29 July 1998) Santow J discussed the nature of the operation of res judicata or cause of action estoppel when a consent order of the Court dismissing proceedings was made. Reference was made to the previous Federal Court Rules 1979, and, in particular, O 35 r 6. Santow J said the following:
The rule, if not expressly then at least by implication, proceeds on the premise that a dismissal order does not automatically preclude the party originally claiming relief from bringing a new action. Although reference is made in r 6(1) of the Federal Court Rules to the ability of the Court to order that a dismissal shall be "without prejudice to any right of the applicant or claimant to bring fresh proceedings or to claim the same relief in fresh proceedings", this does not, in my view, mean that a dismissal which does not include such a "without prejudice" order results automatically in a bar to new proceedings being commenced. The Rule clearly proceeds on the basis that, should fresh proceedings be instituted, the fact that a previous dismissal order has been made need not necessarily prejudice such a fresh proceedings. Whether they are prejudiced, or indeed precluded, will depend on whether the parties intended a dismissal or disposal that was interlocutory or final, as manifested by the order made considered in its forensic context. A dismissal for want of prosecution clearly falls short of a final determination of the substantive proceeding.
28 The distinction being drawn by Santow J was between dismissals of proceedings that were not final, such as dismissal for want of prosecution, and dismissal of proceedings that were final. The relevance of the distinction is that for res judicata or cause of action estoppel to preclude the bringing of fresh proceedings, the judgment or order made must be final.
29 There is no debate here but that the orders made by North J were final, and intended to be such.
30 If a party asserts that the other is precluded from asserting a claim by reason of the principle in res judicata they can seek to have the proceedings dismissed as an abuse of process, seek an order for summary dismissal, plead the matter as a defence and have the issue disposed of finally, either as a separate question or after a full trial. The first two procedural mechanisms are summary in character, forestalling or preventing any hearing on the merits.
31 The appropriate course from the point of view of the parties, and of the Court, may depend on the circumstances.
32 Here, a number of considerations attend that decision and make it inappropriate to dismiss the proceedings in a summary fashion. First, it may be that the behaviour of the parties and the handling of the matter before the Court in 2008 would affect the proper construction of the orders. It may be that the limit or reach of the claim in geographical terms was objectively important to the negotiation.
33 Secondly, in respect of a negotiated settlement leading to a consent determination, it is important to give weight to an approach that supports and upholds the bargain of the parties that saw difficult litigation settled.
34 Thirdly, litigation under the Native Title Act is not ordinary private inter partes litigation. Sought to be vindicated are rights of a communal nature based on occupation and a physical and spiritual connection between land and people that has endured for possibly millennia. The vindication is not only for the living in the claim group, but for their ancestors and for generations to come. How that context affects the operation of principles such as res judicata under or in the context of the Native Title Act is a large question, and is one of great importance. Such a question is not apt to be disposed of on a summary application.
35 Fourthly, and related to the last point, is the possible relationship between the strength of the evidence of the claim group's connection with the land and the position of the State in the litigation. The State is the polity whose residents make the claim of historical connection with land. If that connection evidence were strong, an issue might arise as to the content of the legal obligation of the State in how it approached a claim for res judicata, based as it is on a procedural step that may have been a product of mistake or ignorance. Should the State approach a claim of such historical and future importance by reference to the drastic consequence of res judicata in the circumstances of the order having been brought about? The answer to that question might fashion the development of a rule of law qualifying the principle of res judicata in the context of this type of claim between these parties under the Native Title Act. The answers to these questions may involve a conclusion of the position of the State informed by notions of trust, good faith, informed recognition of the deep importance of the vindication of proven historical connection affecting generations past, present and future. The exercise of power to terminate proceedings summarily should be attended with caution; in particular, the development of the law should not be stultified by such exercise: cf Spencer v The Commonwealth [2010] HCA 28; 241 CLR 118 at 131[24]-132[25].
36 In short, all these considerations militate against the disposal of the proceedings on a summary basis.
37 It may be that, in the light of the joint submission to North J, that the proper construction of the order was such as to contemplate a reservation of the kind found in O 35 r 6. If not, the deeper question of the kind to which we have referred may arise. These questions require the care of final, not summary, disposition.
38 Even if one accepts as correct the applicant's criticism that the primary judge approached the question laying too much emphasis on what the parties mutually intended, the correct order was made. In all the circumstances, it would be inappropriate to permit the Thalanyji people's claim to be disposed of in a summary way without exploration of the kind of considerations to which we have referred. The question of res judicata and any consequential matter should be pleaded.
39 At the hearing we heard the parties on costs. Given that our reasons for not dismissing the proceedings as an abuse of process are somewhat different from his Honour's reasons and from the arguments of the respondents, in all the circumstances, the costs of the application for leave to appeal and the appeal should be costs in the proceedings below.
I certify that the preceding thirty-nine (39) numbered paragraphs are a true copy of the Reasons for Judgment herein of the Honourable Chief Justice Allsop and the Honourable Justices Marshall and Mansfield.