judicial review of fact-finding by Tribunal
14 The review that can be sought before the Federal Circuit Court when an application for a protection visa is refused by the Tribunal is confined to that which is available in relation to migration decisions in the High Court: ss 474 and 476 of the Migration Act 1958 (Cth).
15 Relevantly for present purposes, the jurisdiction in the High Court is confined to review for jurisdictional error. In migration cases, such error consists of a material breach of an express or implied condition of the valid exercise of a decision-making power conferred by the Migration Act: Wei v Minister for Immigration and Border Protection [2015] HCA 51; (2015) 257 CLR 22 at [23].
16 Where a decision-maker is given statutory authority to undertake a particular type of decision-making function and what is done conforms to that requirement then there is no jurisdictional error. A court may disagree with the decision or may be able to identify errors in the reasoning process but there is no jurisdictional error unless those errors take the decision-maker outside the limits of statutory authority: Re Refugee Review Tribunal; Ex parte Aala [2000] HCA 57; (2000) 204 CLR 82 at [163] quoted with approval in Kirk v Industrial Court (NSW) 37; (2010) 239 CLR 531 at [66].
17 Recent High Court authorities show that "the identification of jurisdictional error in any particular case will depend critically upon the proper construction of the particular statute conferring jurisdiction, and the findings made with respect to the particular acts which are said to have taken the decision-maker beyond jurisdiction": Laing O'Rourke Australia Construction Pty Ltd v Samsung C&T Corporation [2016] WASCA 130; (2016) 50 WAR 399 at [95].
18 In exercising the statutory jurisdiction to review a decision of the Minister refusing the grant of a protection visa, the Administrative Appeals Tribunal must conform to the requirements of Part 7 of the Migration Act by which that jurisdiction is conferred. In conducting a review, it is entrusted with all of the powers and discretions conferred by the Migration Act on the person who made the decision: s 415(1). It "is not bound by technicalities, legal forms or rules of evidence": s 420(a). It "must act according to substantial justice and the merits of the case": s 420(b).
19 The Tribunal is not a court. It makes an administrative decision with the authority of statute. Its function is inquisitorial: Minister for Immigration and Citizenship v SZIAI [2009] HCA 39; (2009) 83 ALJR 1123. The High Court has cautioned against transposing the language and mindset of adversarial litigation to inquisitorial decision-making by the Tribunal under the Migration Act: Applicant VEAL of 2002 v Minister for Immigration and Multicultural and Indigenous Affairs [2005] HCA 72; (2005) 225 CLR 88 at [24].
20 So, although the term "evidence" may be used to describe the body of material before the Tribunal, it is apt to mislead. In civil litigation, the outcome is decided based upon the documents and oral testimony that the parties have decided to adduce and the court has decided to receive according to the law of evidence. In that context, to label that material "evidence" is to denote that it was admitted according to the laws of evidence.
21 In the Tribunal, evidence is simply the material before the Tribunal however received. Further, the Tribunal may act on any probative material. It need not reason from that material in the way a court would reason. As to these matters, see: Minister for Immigration and Ethnic Affairs v Wu Shan Liang [1996] HCA 6; (1996) 185 CLR 259, 282. Facts can be fairly found without demanding adherence to the rules of evidence: Kostas v HIA Insurance Services Pty Ltd [2010] HCA 32; (2010) 241 CLR 390, 395-396.
22 It has been held that the factual findings of the Tribunal must be rationally made and based on probative material and logical grounds. Further, there may be jurisdictional error where a finding on credit on an objectively minor matter of fact is used as a basis for the Tribunal to reject the entirety of the claimant's evidence. As to these matters, see: CQG15 v Minister for Immigration and Border Protection [2016] FCAFC 146 at [40]-[55]. The approach to be applied in considering whether there has been a jurisdictional error of that kind was recently summarised in DAO16 v Minister for Immigration and Border Protection [2018] FCAFC 2 at [30].
23 The Tribunal must make a written statement or an oral statement subsequently reduced to writing that sets out its decision, the reasons for the decision, "the findings on any material questions of fact" and which "refers to the evidence or any other material on which the findings of fact were based": ss 430 and 430D of the Migration Act. These provisions require the Tribunal to set out its subjective thought processes. The findings should reflect its view as to what is material (not the views of the parties as to what is material): Minister for Immigration and Multicultural Affairs v Wang [2003] HCA 11; (2003) 215 CLR 518 at [71]-[73].
24 In addition there are requirements expressed in the Administrative Appeals Tribunal Act 1975 (Cth) (AAT Act) that apply to the Tribunal and indicate the nature of the decision-making task entrusted to the Tribunal by Part 7 of the Migration Act. By entrusting the decisions on review to members of the Tribunal, the legislature must have intended that the decisions to be made would have the character of decisions to be made by the Tribunal generally. Members of the Tribunal must be a judge or a legal practitioner who has been enrolled for at least five years or a person with special knowledge or skills relevant to the duties of a member: s 7 of the AAT Act. They must take an oath to faithfully and impartially perform the duties of the office of a member of the Tribunal: s 10B of the AAT Act. They are independent of any other part of the Executive and do not form part of a Ministerial department. They must disclose any conflict of interest and must not take part in any proceeding in which they have a conflict without the consent of the President of the Tribunal: s 14. The Tribunal has a registry and staff for that purpose. A person commits an offence if the person engages in conduct that obstructs or hinders the Tribunal: s 63.
25 As I have noted, this appeal concerns an application for a protection visa. Whether a protection visa is to be granted under the Migration Act depends upon whether the Minister is "satisfied" of the requisite matters in s 36. If a review is sought of the Minister's decision in the Tribunal then Part 7 of the Migration Act applies with the effect that the statutory criterion to be met becomes the satisfaction of the Tribunal: Minister for Immigration and Citizenship v SZMDS [2010] HCA 16; (2010) 240 CLR 611 at [29], [37], [132].
26 However, the satisfaction of the Tribunal must occur by a decision-making process that conforms to the statutory requirements I have described.
27 Drawing these matters together, in order to conform to the statutory requirements, in making factual findings for the purpose of its decision upon an application for a review of a refusal of an application for a protection visa, the Tribunal:
(a) is not bound by technicalities or rules of evidence;
(b) undertakes an inquisitorial task of administrative decision making which is to be distinguished from judicial decision making in an adversarial context;
(c) must decide the facts based upon probative material;
(d) may rely upon material that would not be admissible in adversarial court proceedings and may use that material in a manner that would not conform to the requirements of the laws of evidence;
(e) need not reason from that material in the way a court would reason;
(f) must reason in the manner that would be expected of an experienced legal practitioner or a person selected as a member of the Tribunal by reason of their special knowledge or skills;
(g) must give reasons that are to be available in writing;
(h) must describe in its reasons the findings on any material questions of fact;
(i) must refer in its reasons to the evidence or other material which provided the basis for those findings, in the subjective view of the Tribunal; and
(j) must reason rationally based on probative material and logical grounds.
28 These matters manifest a statutory intention that the Tribunal's fact-finding on an application for a protection visa is required to conform to the standard of reasoning and analysis that might be expected of a formally established independent specialist administrative tribunal with members who have appropriate legal qualifications and experience or have special knowledge or skills that enable them to provide considered reasons as to the factual basis for any decision of the Tribunal.
29 Therefore, when it comes to deciding whether the decision is rational and reasoned in a logical manner and supported by probative material, these matters must be measured by reference to the above aspects of the statutory character of the decision-making to be undertaken. The standard or quality of factual decision-making required in order to properly perform the statutory task must reflect the particular statutory context.
30 It is not for the Court on review to set its own standard or consider how it would approach the fact-finding task. Evaluation as to whether the fact-finding was of a character that the decision conformed to the statutory requirements should not be undertaken by reference to some form of a priori or idiosyncratic view as to the nature of the fact-finding required. Nor should it be undertaken by reference to some view as to a fixed legal standard when it comes to the nature of reasoning to support fact-finding by administrative tribunals in general. The Migration Act requires a particular type of decision-making and the fact-finding by the Tribunal must be undertaken in accordance with those requirements. If it is not then the decision is outside the statutory authority entrusted to the Tribunal and there is jurisdictional error.
31 In addition, where the challenge made is to the validity of the exercise of a statutory task of a kind that must be undertaken (rather than to the validity of the exercise of a statutory discretion), reasonableness will be implied as a condition of the valid discharge of the statutory duty if there is no affirmative basis in the statute for its exclusion or modification: Minister for Immigration and Citizenship v Li [2013] HCA 18; (2013) 249 CLR 332 at [92].
32 The concept of legal unreasonableness as applied in the context of the jurisdiction under s 476 of the Migration Act was summarised in Minister for Immigration and Border Protection v Eden [2016] FCAFC 28; (2016) 240 FCR 158 at [58]-[65]. It does not involve a review of the merits of a decision or the court substituting its own view as to the facts. It involves an assessment that the decision was outside the area of decisional freedom of the statutory decision-maker because it has the character of being arbitrary or capricious or lacks "common sense".
33 In some cases, unreasonableness may be inferred from the result on the basis that a person properly undertaking the statutory task could not have reached the particular result: Avon Downs Pty Ltd v Federal Commissioner of Taxation [1949] HCA 26; (1949) 78 CLR 353, 360. However, where reasons are available, the focus should be upon those reasons and where they provide an evident and intelligible justification for the decision, it is unlikely that the decision could be considered legally unreasonable: Minister for Immigration and Border Protection v Singh [2014] FCAFC 1; (2014) 231 FCR 437 at [47].
34 Again, what may be considered to be an unreasonable exercise of statutory power (and therefore beyond the statutory jurisdiction entrusted to the decision-maker) is contextual. The legal standard of reasonableness must be the standard indicated by the true construction of the statute: Minister for Immigration and Citizenship v Li at [67].
35 As Allsop CJ said (Wigney J agreeing) in Minister for Immigration and Border Protection v Stretton [2016] FCAFC 11; (2016) 257 FCR 1 at [12].
Crucial to remember, however, is that the task for the Court is not to assess what it thinks is reasonable and thereby conclude (as if in an appeal concerning breach of duty of care) that any other view displays error; rather, the task is to evaluate the quality of the decision, by reference to the statutory source of the power and thus, from its scope, purpose and objects to assess whether it is lawful. The undertaking of that task may see the decision characterised as legally unreasonable whether because of specific identifiable jurisdictional error, or the conclusion or outcome reached, or the reasoning process utilised.
36 At all times it must be borne in mind that "[s]omeone who disagrees strongly with someone else's process of reasoning on an issue of fact may express such disagreement by describing the reasoning as 'illogical' or 'unreasonable', or even 'so unreasonable that no reasonable person could adopt it'. If these are merely emphatic ways of saying that the reasoning is wrong, then they may have no particular legal consequence": Minister for Immigration v Eshetu [1999] HCA 21; (1999) 197 CLR 611 at [40] (Gleeson CJ and McHugh J).
37 Finally, the reasons of an administrative tribunal are not to be read with an eye keenly attuned to the perception of error: Minister for Immigration and Ethic Affairs v Wu Shan Liang at 272 and Port of Newcastle Operations Pty Ltd v Australian Competition Tribunal [2017] FCAFC 124 at [163]. This requires a court on review to refrain from using "looseness in language" or "unhappy phrasing" as a basis for reaching a conclusion that there has been reviewable error. Regard must be had to the overall thrust of the reasons, considered in a balanced way. Of course, this principle must not be applied so as to support a decision that lacks the quality or character of fact-finding required by the particular legislative provision.