Consideration
46 In Minister for Immigration and Citizenship v SZMDS [2010] HCA 16; (2010) 240 CLR 611, 647-648 at [130], [131] (Crennan and Bell JJ) on the question of illogicality and irrationality in the context of administrative decision-making said:
130 In the context of the Tribunal's decision here, "illogicality" or "irrationality" sufficient to give rise to jurisdictional error must mean the decision to which the Tribunal came, in relation to the state of satisfaction required under s 65, is one at which no rational or logical decision maker could arrive on the same evidence. In other words, accepting, for the sake of argument, that an allegation of illogicality or irrationality provides some distinct basis for seeking judicial review of a decision as to a jurisdictional fact, it is nevertheless an allegation of the same order as a complaint that a decision is "clearly unjust" or "arbitrary" or "capricious" or "unreasonable" in the sense that the state of satisfaction mandated by the statute imports a requirement that the opinion as to the state of satisfaction must be one that could be formed by a reasonable person. The same applies in the case of an opinion that a mandated state of satisfaction has not been reached. Not every lapse in logic will give rise to jurisdictional error. A court should be slow, although not unwilling, to interfere in an appropriate case.
131 What was involved here was an issue of jurisdictional fact upon which different minds might reach different conclusions. The complaint of illogicality or irrationality was said to lie in the process of reasoning. But, the test for illogicality or irrationality must be to ask whether logical or rational or reasonable minds might adopt different reasoning or might differ in any decision or finding to be made on evidence upon which the decision is based. If probative evidence can give rise to different processes of reasoning and if logical or rational or reasonable minds might differ in respect of the conclusions to be drawn from that evidence, a decision cannot be said by a reviewing court to be illogical or irrational or unreasonable, simply because one conclusion has been preferred to another possible conclusion.
47 In Djokovic v Minister for Immigration, Citizenship, Migrant Services and Multicultural Affairs [2022] FCAFC 3; (2022) 397 ALR 1 at [33]-[35] (Allsop CJ, Besanko and O'Callaghan JJ) the Full Court set out a number of principles in relation to illogicality, irrationality and unreasonableness:
33 The characterisation of a decision (or a state of satisfaction) as legally unreasonable because of illogicality or irrationality is not easily made: Minister for Immigration and Border Protection v SZVFW [2018] HCA 30; 264 CLR 541 at 551 [11], 564 [52], and 586 [135]; Minister for Home Affairs v DUA16 [2020] HCA 46; 385 ALR 212 at 220 [26]; SZMDS 240 CLR at 647-650 [130]-[135]; CQG15 v Minister for Immigration and Border Protection [2016] FCAFC 146; 253 FCR 496 at 517-518 [60]; and Acting Minister for Immigration, Citizenship, Migrant Services and Multicultural Affairs v CWY20 [2021] FCAFC 195; 395 ALR 57 at 88 [142].
34 The task in assessing illogicality is not an exercise in logical dialectic. "Not every lapse of logic will give rise to jurisdictional error. A Court should be slow, although not unwilling, to interfere in an appropriate case": SZDMS 240 CLR at 648 [130]. It is the ascertainment, through understanding the approach of the decision-maker and characterising the reasoning process, of whether the decision (or state of satisfaction) is so lacking a rational or logical foundation that the decision (or relevant state of satisfaction) was one that no rational or logical decision-maker could reach, such that it was not a decision (or state of satisfaction) contemplated by the provision in question. Some lack of logic present in reasoning may only explain why a mistake of fact had been made which can be seen to be an error made within jurisdiction. As the Chief Justice said in Stretton at [11], the evaluation of whether a decision was made within lawful boundaries is not definitional, but one of characterisation and whether the decision was sufficiently lacking in rational foundation, having regard to the terms, scope and purpose of the statutory source of power, that it cannot be said to be within the range of possible lawful outcomes.
35 Ultimately, the question is whether the satisfaction of the relevant state of affairs or matter was irrational, illogical or not based on findings or inferences of fact supported by logical grounds: Minister for Immigration and Multicultural and Indigenous Affairs v SGLB [2004] HCA 32; 207 ALR 12 at 20-21 [38]; Re Minister for Immigration and Multicultural Affairs; Ex Parte Applicant S20/2002 [2003] HCA 30; 198 ALR 59 at 71 [52] and 98 [173], such that it cannot be said to be possible for the conclusion to be made or the satisfaction reached logically or rationally on the available material. It will then satisfy the characterisation of unjust, arbitrary or capricious.
48 In this matter, the primary judge found the Tribunal considered the material put before it, including the submission that the first appellant's scarring may cause him to be of heightened interest. Although the Tribunal accepted the evidence of scarring, the Tribunal was not satisfied as to the cause of that scarring given the doubt cast upon the first appellant's claim of torture by Sri Lankan authorities when the first appellant was in India at the time of the alleged torture.
49 The primary judge observed, correctly with respect, that it may be that another Tribunal may have applied a different reasoning process and arrived at a different conclusion, however that is not sufficient to ground a finding of illogicality or irrationality. His Honour was not satisfied that the conclusion reached by the Tribunal was one which was not possible on the material before the Tribunal, such that the Tribunal's decision was not legally unreasonable: R at [56]-[57].
50 His Honour was correct to so find.
51 The appeal must be dismissed.
I certify that the preceding fifty-one (51) numbered paragraphs are a true copy of the Reasons for Judgment of the Honourable Justice O'Sullivan.