Legal unreasonableness
65 The conclusions we have drawn above are sufficient to dispose of the contention that the primary judge erred in rejecting the first to third grounds for judicial review. They also provide an answer to that part of the fourth ground that challenged the Minister's assessment of Mr Raibevu's risk of reoffending.
66 The fourth ground for judicial review also contained a broad complaint about the ultimate outcome under the heading "Particulars" (extracted at [32] above). On appeal, arguments in relation to unreasonableness strayed considerably from the particulars given for this ground at first instance.
67 The circumstances in which an administrative decision may be vitiated for legal unreasonableness are defined by well-established legal principles. The authorities were summarised by the Full Court in Muggeridge v Minister for Immigration and Border Protection (2017) 255 FCR 81 at [35] (Charlesworth J, Perry and Flick JJ agreeing). In the context of a decision to cancel a visa on character grounds in the exercise of the power conferred by s 501(2) of the Act, the Court said:
(1) the power conferred under s 501(2) of the Act is implicitly confined by the subject matter, scope and purpose of the legislation: Water Conservation and Irrigation Commission (NSW) v Browning (1947) 74 CLR 492 at 505 (Dixon J);
(2) as Allsop CJ explained in Stretton (at [11]), the task of reviewing a decision for legal unreasonableness is not definitional, but one of characterisation:
… the decision is to be evaluated, and a conclusion reached as to whether it has the character of being unreasonable, in sufficiently lacking rational foundation, or an evident or intelligible justification, or in being plainly unjust, arbitrary, capricious, or lacking common sense having regard to the terms, scope and purpose of the statutory source of the power, such that it cannot be said to be within the range of possible lawful outcomes as an exercise of that power. …
(3) the Court is to look to the reasons given for the decision to understand why the power was exercised as it was: Minister for Immigration and Border Protection v Singh (2014) 231 FCR 437 (Singh);
(4) as the Full Court explained in Singh, the process of review of legal unreasonableness 'will inevitably be fact dependent'. The Court continued (at [48]):
… That is not to diminish the importance of the supervising court maintaining an approach which does not involve the substitution of its own judgment for that of the decision-maker. Rather, it is to recognise that any analysis which involves concepts such as 'intelligible justification' must involve scrutiny of the factual circumstances in which the power comes to be exercised.
(5) in a different review context, Deane J spoke of the requirement that a statutory tribunal act rationally and reasonably: Australian Broadcasting Tribunal v Bond (1990) 170 CLR 321 at 367 - 368. His Honour's explanation of the content of that obligation applies equally to the Minister in the exercise of the power conferred by s 501(2) of the Act (at 367):
When the process of decision-making need not be and is not disclosed, there will be a discernible breach of such a duty if a decision of fact is unsupported by probative material. When the process of decision-making is disclosed, there will be a discernible breach of the duty if findings of fact upon which a decision is based are unsupported by probative material and if inferences of fact upon which such a decision is based cannot reasonably be drawn from such findings of fact.
(6) nevertheless, as Wigney J said (with respect correctly) in Minister for Immigration and Border Protection v SZUXN (2016) 69 AAR 210 (at [55]):
… allegations of illogical or irrational reasoning or findings of fact must be considered against the framework of the inquiry being whether or not there has been jurisdictional error on the part of the Tribunal: SZRKT at 137 [148]. The overarching question is whether the Tribunal's decision was affected by jurisdictional error: SZRKT at [151]. Even if an aspect of reasoning, or a particular factual finding, is shown to be irrational or illogical, jurisdictional error will generally not be established if that reasoning or finding of fact was immaterial, or not critical to, the ultimate conclusion or end result: Minister for Immigration and Citizenship v SZOCT (2010) 189 FCR 577 at [83]-[84] (Nicholas J); SZNKO v Minister for Immigration and Citizenship (2013) 140 ALD 78 at [113]. Where the impugned finding is but one of a number of findings that independently may have led to the Tribunal's ultimate conclusion, jurisdictional error will generally not be made out: SZRLQ v Minister for Immigration and Citizenship (2013) 135 ALD 276 at [66]; SZWCO at [64]-[67].
68 As the outcome in Muggeridge shows, a decision to cancel a visa on character grounds may be affected by legal unreasonableness where it is demonstrated that the decision-maker had concluded that a non-citizen had been rehabilitated and yet draws the contradictory conclusion that the non-citizen presented a risk of reoffending. Such a decision may be said to involve illogicality or to otherwise have no evident or intelligible justification.
69 However, the task of a court exercising powers on judicial review is to not import or substitute its own view of the most objectively reasonable outcome. As Allsop CJ said in Minister for Immigration and Border Protection v Stretton (2016) 237 FCR 1 (at [21]):
The difficulty with the reasoning [of the primary judge] is that it is expressed as the primary judge's view as to what was reasonable. He, himself, makes an evaluation of what is necessary for the protection of the Australian community, principally, if not wholly, however, by reference to the young children in Mr Stretton's immediate family. It would seem that this approach was brought about by a view of the need for the assessment to be objectively unreasonable. This does not carry with it the authority for the Court to reach its own view of what is reasonable or not, or what is necessary, and then, without more, to supplant the view of the Minister. It is not a correct approach for the Court on judicial review to assess the lawfulness of the decision under s 501 by asking whether the exercise of discretion was necessary for the purpose. That an assessment whether the decision-maker's conclusion was legally unreasonable may involve some consideration of disproportionality does not authorise the Court to decide for itself what is necessary for the relevant purpose and to declare a decision beyond that assessment as unreasonable. The correct question, or perspective, if one is looking at the outcome in question, is not whether the Court thinks the decision is reasonable, or necessary for the purpose, or not, as the case may be; rather it is whether a decision-maker could reasonably come to the conclusion. …
70 Considered against these principles, the arguments advanced on behalf of Mr Raibevu may be divided and considered in two categories.
71 Arguments in the first category were to the effect that the Minister's conclusion that Mr Raibevu posed a risk to the Australian community had no support in the evidence and was otherwise illogical.
72 It was submitted the successful completion by Mr Raibevu of a series of courses whilst in prison positively demonstrated that he had turned his life around whilst in prison. Counsel went so far as to submit that the Minister was required to infer that Mr Raibevu had been rehabilitated because to conclude otherwise would offend principles of sentencing: as rehabilitation was a purpose of Mr Raibevu's term of imprisonment, it followed that he had in fact been rehabilitated. The Minister's conclusion that Mr Raibevu might reoffend was "speculative". These arguments must be rejected.
73 The Minister took into account the courses Mr Raibevu had completed, then turned to consider the likely effectiveness of the courses should Mr Raibevu be released into the community. The Minister was plainly entitled to have regard to past events when making that assessment, particularly Mr Raibevu's failure (before his imprisonment) to address the drug and alcohol problems that had contributed to his offending behaviour. In light of the opportunities previously provided to Mr Raibevu to address his substance abuse problems, it was plainly open to the Minister to conclude that the possibility of reoffending could not be ruled out. As the Full Court said in Muggeridge (at [36]):
… the task of the Minister necessarily involved a degree of postulation as to what might occur in the future should Mr Muggeridge's visa not be cancelled and should he remain present in the Australian community. The Minister was entitled to speculate as to what might happen in the future by reference to evidence of what had occurred in the past. As the joint judgment held in Minister for Immigration and Ethnic Affairs v Guo (1997) 191 CLR 559 at 574 (Brennan CJ, Dawson, Toohey, Gaudron, McHugh and Gummow JJ), '[p]ast events are not a certain guide to the future, but in many areas of life proof that events have occurred often provides a reliable basis for determining the probability - high or low - of their occurrence.' The adoption of a reasoning process that involved postulation or supposition cannot, in and of itself, therefore constitute jurisdictional error. It is nonetheless necessary that the hypotheses underlying the decision bear some rational connection to the evidentiary materials upon which the Minister is said to have relied.
74 Next it was submitted that the Minister's reasons were internally inconsistent and therefore illogical. The alleged inconsistency was that the Minister had concluded that Mr Raibevu had in fact been rehabilitated but had nonetheless concluded that he posed a risk to the Australian community. These submissions misstate the Minister's reasons. Whilst the Minister acknowledged that Mr Raibevu had claimed to have been rehabilitated, the Minister's conclusion in respect of that claim was that the possibility of reoffending could not be ruled out.
75 The arguments in the second category amounted to a multi-faceted criticism of the objective reasonableness of the outcome. The arguments were expressed in heightened language and with minimal reference to evidentiary material or recognised legal principles. They included the following:
(1) the decision amounted to "abject cruelty" and "absolute ludicrous madness";
(2) the decision was one that "no one could possibly agree with … No one except another conservative";
(3) the effect of the decision was that Mr Raibevu was "condemned to be separated from his beautiful family and his children";
(4) there "must be a time for forgiveness. There must be time for serving your time" and "there has got to be a presumption of innocence in all this";
(5) the effect of the decision was to subject Mr Raibevu to three years in immigration detention and so "punish" him further for his past offending and future offences he had not committed; and
(6) the Minister had in "a cynical move" cancelled Mr Raibevu's visa shortly before he would otherwise have become eligible to apply for parole "because the Minister perhaps didn't want to see the parole reports that he is rehabilitated".
76 It is not necessary to exhaustively list all arguments of this kind, nor to deal with them separately. Considered together, they demonstrate a serious misapprehension of the task of a court exercising powers of judicial review. To accept the submissions would be to err in the manner identified by Allsop CJ in Stretton in the passage extracted at [69] above.
77 The first ground of appeal must be rejected.