Anshun Estoppel
32 The distinction between the two doctrines of res judicata and Anshun estoppel should be recognised at the outset: where there is a res judicata, the right or cause of action becomes merged in the judgment; where there is an Anshun estoppel, a party will not be permitted in a later proceeding to raise a matter that was so relevant to an earlier proceeding that it was unreasonable not to have done so. For there to be a res judicata the parties to the two proceedings must be the same: Ramsay v Pigram (1968) 118 CLR 271 at 276 per Barwick CJ.
33 As recognised by Gibbs CJ, Mason, Wilson, Brennan, Deane and Dawson JJ in Metwally v University of Wollongong (No 2) (1985) 60 ALR 68 at 71:
It is elementary that a party is bound by the conduct of his case. Except in the most exceptional circumstances, it would be contrary to all principle to allow a party, after a case had been decided against him, to raise a new argument which, whether deliberately or by inadvertence, he failed to put during the hearing when he had an opportunity to do so.
A party is thus precluded from later raising an argument in a subsequent proceeding which he could reasonably have relied upon in an earlier proceeding. A party is generally bound by the manner in which he initially sought to have factual and legal issues between himself and an opponent judicially resolved. See also: SZGGS v Minister for Immigration and Citizenship [2008] FCA 973 at [16] per Rares J.
34 The principles particularly relevant to what is now commonly referred to as Anshun estoppel are to be found in the case bearing that name: Port of Melbourne Authority v Anshun Pty Ltd (1981) 147 CLR 589. When concluding that a defence which could previously have been raised could not later be relied upon, Gibbs CJ, Mason and Aickin JJ there expressed the law to be as follows:
In this situation we would prefer to say that there will be no estoppel unless it appears that the matter relied upon as a defence in the second action was so relevant to the subject matter of the first action that it would have been unreasonable not to rely on it. Generally speaking, it would be unreasonable not to plead a defence if, having regard to the nature of the plaintiff's claim, and its subject matter it would be expected that the defendant would raise the defence and thereby enable the relevant issues to be determined in the one proceeding. In this respect, we need to recall that there are a variety of circumstances, some referred to in the earlier cases, why a party may justifiably refrain from litigating an issue in one proceeding yet wish to litigate the issue in other proceedings e.g. expense, importance of the particular issue, motives extraneous to the actual litigation, to mention but a few. …
It has generally been accepted that a party will be estopped from bringing an action which, if it succeeds, will result in a judgment which conflicts with an earlier judgment. …: [(1981) 147 CLR 589 at 602-603].
In reaching the same conclusion, Brennan J reasoned:
When the same facts support rights to different remedies against the same defendant, the plaintiff cannot recover a judgment giving a remedy in respect of more than one right … He may pursue his remedies concurrently in the same action, but he is put to his election before judgment as to which remedy he shall have. And when judgment is entered, all of the rights which he might have claimed in that litigation are merged in the judgment. …
The party entitled to relief cannot improve his position by bringing separate actions. Though he may elect between inconsistent remedies pursued in the one action, or between the actions to be pursued in order to recover a judgment giving the remedy he chooses, the merger in the judgment first recovered of a right to another remedy takes effect by operation of law. When those rights (or causes of action) are extinguished, no further litigation may be pursued to recover a second judgment upon them.
Accordingly, inconsistency between judgments against the same defendant is avoided by the merger in the judgment first recovered of the right to the remedy thereby given and of all other rights which arise on the same facts. …: [(1981) 147 CLR 589 at 611-612].
These observations of Brennan J were endorsed by Handley AJA in White v Thompson [2011] NSWCA 161 at [33] (Basten and Young JJA agreeing). The risk of inconsistent judgments lies at the core of Anshun estoppel: Gibbs v Kinna [1998] VSCA 52 at [25] to [26], [1999] 2 VR 19 at 27 to 28 per Kenny JA; Solak v Registrar of Titles [2011] VSCA 279 at [74] per Warren CJ (Neave JA and Hargrave AJA agreeing). In considering whether a matter is "so relevant" that it would have been "unreasonable" not to have previously raised it, it is an error to reason that because a matter "could have been raised in the first proceeding…, it should have been": Champerslife Pty Ltd v Manojlovski [2010] NSWCA 33 at [4], 75 NSWLR 245 at 247. Allsop P observed that "the assessment is not to be made mechanistically, but rather there is a value judgment to be made referable to the proper conduct of modern litigation". "The purpose of the principle is to avoid the possibility of inconsistent decisions and promote the efficient use of court resources and time": Owston Nominees No 2 Pty Ltd v Clambake Pty Ltd [2011] WASCA 76 at [125], 248 FLR 193 at 218 per McLure P.
35 Anshun estoppel, it should also be noted, is not confined to litigation as between private litigants. It is also a doctrine which has been applied in Australia to proceedings seeking judicial review: Stuart v Sanderson [2000] FCA 870 at [22] to [24], 100 FCR 150 at 156 to 157 per Madgwick J; Wong v Minister for Immigration and Multicultural and Indigenous Affairs [2004] FCAFC 242 at [39], 146 FCR 10 at 18 per Emmett, Conti and Selway JJ. In SZBJM v Minister for Immigration and Multicultural and Indigenous Affairs [2004] FCA 404 at [18], Madgwick J concluded that he could "see no cogent reason why res judicata, issue estoppel (where it can otherwise be established) and Anshun estoppel should not apply in administrative proceedings". Issue estoppel has been held to preclude in a later proceeding a re-litigation of whether a decision was of "an administrative character" and made "under an enactment" for the purposes of the Administrative Decisions (Judicial Review) Act 1977 (Cth): Taylor v Ansett Transport Industries Ltd (1987) 18 FCR 342 at 354 per Fisher J. Ryan J agreed with Fisher J: (1987) 18 FCR 342 at 365. Northrop J dissented: (1987) 18 FCR 342 at 345.
36 Thus, for example, in Wong Emmett, Conti and Selway JJ summarised at least some of the relevant legal principles as follows:
[36] The doctrines of res judicata and issue estoppel are founded on the broad rules of public policy expressed in the maxims nemo debet bis vexari pro una et eadem causa (a person ought not to be vexed twice for one and the same cause) and interest reipublicae ut sit finis litium (it is in the interests of the State that there be an end to litigation). It would be an abuse of process to allow parties to litigate repeatedly matters that have been finally determined by the Court. Also, quite apart from any psychological detriment that might flow from an individual having to undertake litigation of the same issue a second time, the State has an interest in ensuring that, once an issue has been determined according to law and all rights of appeal have been exhausted, that should be an end of the matter. The resources of the community ought not to be expended in the litigation, more than once, of the same issue.
[37] A plea in bar may be raised in respect of an issue, not only if the Court in the earlier proceeding was actually required by the parties to form an opinion and pronounce a judgment, but also in relation to every issue that properly belonged to the subject of the earlier litigation and which the parties, exercising reasonable diligence, might have brought forward at the time of the earlier litigation: Port of Melbourne Authority v Anshun Pty Ltd (1981) 147 CLR 589 at 598 and 602. Anshun estoppel arises where the issue, now raised for the first time, properly belonged to the subject of the earlier proceeding but, by negligence, omission or accident, was not raised in earlier proceeding. In essence, where the issue was so relevant to the subject matter of the earlier action that it would be unreasonable not to have raised it at that time, it is an abuse of process to endeavour to raise that issue for the first time in a subsequent proceeding between the parties: Anshun at 602.
…
[39] Anshun estoppel has been applied to proceedings in the nature of judicial review of administrative action, insofar as Anshun estoppel is aimed at avoiding abuse of process: …. However, where the beneficiary of such a principle is a Minister of State, who has no personal interest in the outcome of a proceeding, such a principle may be of only secondary significance: [(2004) 146 FCR 10 at 17 to 18].
See also: MZWHU v Minister for Immigration and Multicultural and Indigenous Affairs [2006] FCA 1387 at [28] per Middleton J. Emmett, Conti and Selway JJ in Wong went on to express the following further comments:
[53] … There may be sound reasons of policy for arguing that Anshun estoppel not apply for the benefit of the executive government and its representatives, but only to individuals. This is because the executive is a respondent by force of statute or of the Constitution and is not subject to the same psychological burden that may weigh on individual litigants; they cannot be "vexed" in the same way by instigation of subsequent proceedings. That may be a more appropriate basis, namely that of accepted public policy, to ensure that representatives of the executive government cannot rely on the principle of Anshun estoppel to frustrate, in effect, the intended legislative mandate. However that proposition does not sit well with the authorities that apply the principle of Anshun estoppel equally to judicial review of administrative action (at [39]): [(2004) 146 FCR 10 at 20].
The Minister's failure in Wong to there comply with a "positive duty" did not constitute "special circumstances". See also: Applicant M117 of 2007 v Minister for Immigration and Citizenship [2008] FCA 1838 at [63] to [64] per Kenny J.
37 But, and as was recognised by Emmett, Conti and Selway JJ in Wong, general principles as to the reach of Anshun estoppel may operate differently when the litigation involves the resolution of public - as opposed to private - rights.
38 In public law litigation the focus of attention shifts from an adjudication of private rights between private litigants to an adjudication of rights as between a litigant and a Minister of the Crown or a government entity. There are sound reasons why all issues which can reasonably be raised as between private litigants should generally be resolved during a single judicial outing. So, too, in decisions seeking judicial review. But different considerations, however, potentially apply in public law litigation (cf Enid Campbell, 'Relitigation in Government Cases: A Study of the Use of Estoppel Principles in Public Law Litigation' (1994) 20 Monash University Law Review 21). Considerations which it has been said may apply in a different manner in the context of public law litigation include:
the absence of any "pleadings" in (for example) an application for judicial review which clearly identify the "issue" or the "cause of action";
the absence on the part of a respondent Minister of any "personal interest in the outcome of a proceeding";
the prospect that a respondent may be less "vexed" by litigation than a private respondent; and
the potential for a respondent Minister to have greater resources.
Another consideration, however, supporting the importance of Anshun estoppel to public law litigation may be:
the prospect of a respondent Minister confronting a series of separate challenges arising out of multiple decisions raising the same legal question, albeit a question which has to be answered by reference to the facts and circumstances of each particular applicant. A series of unsuccessful attempts raised in a series of discrete proceedings to challenge the manner in which that single legal question has been approached and resolved cannot generally be open to question merely because a later applicant happens to seize upon an argument previously not considered.
In areas of mass decision-making, such as some decisions made under the Migration Act, any contrary conclusion may lead to many earlier decisions being open to question - not by reference to the bases upon which they were in fact challenged - but by reference to an argument only crafted and devised by legal advisers retained in different proceedings, perhaps in a proceeding taking place many years after the first decision on that same legal question has been made.
39 The state of the authorities in Australia, however, is such that Anshun estoppel may operate in both private and public law litigation.
40 In determining whether it was "unreasonable" for Mr Kong not to have raised the argument exposed in Dai, it may be accepted that at the time he sought judicial review the jurisdictional error exposed in Dai remained unexplored. The fact that legal advisors retained in different proceedings at a later point in time successfully exposed an argument previously not discerned must necessarily be balanced against the fundamental concern as to the need for finality in litigation and also such further considerations as:
(i) the public interest in ensuring that administrative decision-making is made in accordance with law; and
(ii) the public interest in certainty in administrative decision-making and decisions being made in a timely and efficient manner.
The sole factor which may lend some support for Mr Kong's proposition that he should remain free to be able to now rely upon the decision in Dai is that the judgment was handed down after the decision in his own proceeding. On one view, his proposition is that it cannot be "unreasonable" for him to have not relied upon an argument or a ground of review of which he was unaware. But that sole factor, it is considered, should not prevail. The law is constantly developing - especially in the area as to what constitutes "jurisdictional error." A successful argument as to what constitutes "jurisdictional error" should not generally be the occasion for prior disappointed applicants seeking judicial review to re-agitate issues which had previously been finally resolved. To accept such a general proposition would undermine finality in public law litigation and be productive of inconsistent judgments.
41 Although the absence of legal representation may be relevant to a determination as to whether a new ground of review should reasonably have been raised in an earlier round of litigation, it should be recognised that Anshun estoppel does not necessarily arise merely by reason of a litigant being unrepresented (MZWGJ v Minister for Immigration and Multicultural and Indigenous Affairs [2005] FCA 1501 at [11] per Sundberg J; MZWKJ v Minister for Immigration and Multicultural Affairs [2006] FCA 761 at [19] per Kenny J; SZHEW v Minister for Immigration and Citizenship [2009] FCA 783 at [33] per Jagot J) or by reason of any lack of appreciation on the part of an unrepresented litigant of the arguments that could potentially have been previously advanced (SZFMW v Minister for Immigration and Citizenship [2008] FCA 1862 at [11] per Bennett J).
42 In the circumstances of the present case, it is concluded that Mr Kong cannot now rely upon the jurisdictional error exposed by Dai. The public interest in the certainty of administrative decision-making prevails over permitting Mr Kong the freedom to raise the argument some four years after the decision of the Full Court in Dai and seven years after the cancellation of his visa. After such a period of time, the importance to be ascribed to possibly inconsistent judgments being delivered - one in 2006 and the other in 2011 in this appeal - is only increased and weighs heavily against Mr Kong. The potential for inconsistent judgments was also a matter relied upon by Sackville J in BC v Minister for Immigration and Multicultural Affairs [2001] FCA 1669 at [45] to [46], 67 ALD 60 at 73. Although His Honour there concluded that res judicata did not deny success to the appellant, Anshun estoppel did.
43 In the present proceeding it is perhaps of marginal relevance to note that there is an absence of any evidence in the present proceeding of such matters as (inter alia) when Mr Kong's advisors were first retained to give advice and when they first became aware of the decision of the Full Court in Dai.
44 Notwithstanding the significant concessions made on behalf of the Respondent Minister, it is concluded that there are no "special circumstances" such as to warrant Mr Kong being now free to raise an argument founded upon Dai.