Was the error material to the Tribunal's decision?
55 As was recently stated LPDT v Minister for Immigration, Citizenship, Migrant Services and Multicultural Affairs [2024] HCA 12; 98 ALJR 610 at [2] (Gageler CJ, Gordon, Edelman, Steward, Gleeson and Jagot JJ), "[j]urisdictional error can refer to breach of an express or implied condition of a statutory conferral of decision-making authority which results in a decision made in the purported exercise of that authority lacking the legal force attributed to exercise of that authority by statute". This can include, relevantly, having regard to an irrelevant consideration which the statute forbids the decision-maker from taking into account in the exercise of the statutory power.
56 In most cases, such an error will only be jurisdictional if it was material to the decision that was in fact made, "in the sense that there is a realistic possibility that the decision that was made in fact could have been different if the error had not occurred": LPDT at [7] (emphasis in original). This "threshold of materiality" was elaborated by the High Court in LPDT in the specific context of a decision under s 501CA(4) of the Migration Act not to revoke a visa cancellation. The plurality stated that whether an error has occurred and whether that error was material are both "wholly backward-looking" questions that are "to be answered by reference to the decision that was made and, depending on the nature of the error, how that decision was made": LPDT at [9]-[10]. Whether or not an error is material "is determined by inferences drawn from the evidence adduced on the application": LPDT at [13].
57 The plurality summarised the principles drawn from the High Court's previous decisions on the question of materiality as follows: LPDT at [14]-[16].
The question in these cases is whether the decision that was in fact made could, not would, "realistically" have been different had there been no error. "Realistic" is used to distinguish the assessment of the possibility of a different outcome from one where the possibility is fanciful or improbable. Though the applicant must satisfy the court that the threshold of materiality is met in order to establish that the error is jurisdictional, meeting that threshold is not demanding or onerous.
What must be shown to demonstrate that an established error meets the threshold of materiality will depend upon the error. In some cases, it will be sufficient to show that there has been an error, and that the outcome is consistent with the error having affected the decision. ... Importantly, a court called upon to determine whether the threshold has been met must be careful not to assume the function of the decision-maker: the point at which the line between judicial review and merits review is crossed may not always be clear, but the line must be maintained. This case affords an example.
In sum, unless there is identified a basis on which it can be affirmatively concluded that the outcome would inevitably have been the same had the error not been made, once an applicant establishes that there has been an error and demonstrates that there exists a realistic possibility that the outcome of the decision could have been different had that error not been made, the threshold of materiality will have been met (and curial relief will be justified subject to any issue of utility or discretion).
(Citations omitted, emphasis in original.)
58 As in the present case, there was no dispute in LPDT that the Tribunal had fallen into error. The error in LPDT was a failure by the Tribunal to comply with Direction 90 in making findings for the purposes of paras 8.1.1(1)(a), (b) and (g) of the Direction that were illogical or unreasonable or not supported by evidence. As was accepted before the High Court, this involved a failure by the Tribunal to comply with s 499(2A) of the Migration Act by failing to comply with Direction 90 and thereby breaching a condition governing the exercise of the decision-making power under s 501CA(4): LPDT at [31].
59 In LPDT, the Full Court below had reasoned that the error was not material because the Court did not consider that there was a realistic possibility that the Tribunal could have viewed the appellant's conduct as merely serious (as opposed to viewing it "very seriously"), nor that the weighing exercise under para 8.1.1(1) could have had a "favourable outcome" for the appellant in any event. In overturning the Full Court's conclusion on materiality, the plurality of the High Court disapproved both of those findings as "making assumptions about how the Tribunal would have undertaken the weighing exercise of the matters in para 8.1.1(1)", which went beyond the role of a court on judicial review. The plurality stressed that "[a] reviewing court does not engage in a review of the merits of the decision, reconstruct a decision making process, rework the apparent basis upon which a decision has been made, or rewrite the reasons for decision": LPDT at [29] (citations omitted).
60 The plurality in LPDT concluded that the Tribunal's error in the application of para 8.1.1(1) of Direction 90 was material to the decision made by the Tribunal, stating that "[e]ach particular of the error contributed to the evaluative and discretionary decision which the Tribunal made in that each bore on the Tribunal's assessment of Primary Consideration 1, and in that the Tribunal's assessment of Primary Consideration 1 weighed in favour of its exercise of discretion under s 501CA(4) not to revoke the cancellation of the appellant's visa": at [35]. In such circumstances, the plurality found that "the evaluative conclusion reached by the Tribunal in the exercise of the discretion under s 501CA(4) could have been different if there had been no error". The plurality said at [36]:
It would involve improper speculation to attempt to discern how the Tribunal would have reasoned if it had not departed from the required process of reasoning in these respects. It follows that there is a possibility, not fanciful or improbable, that the decision that was made in fact could have been different if the error had not occurred. The threshold of materiality was met. None of the facts before the Court provided a basis to consider that the outcome would inevitably have been the same had the error not been made. The error was jurisdictional. …
(Emphasis in original.)
61 Justice Beech-Jones agreed with the principles stated by the plurality in relation to jurisdictional error and materiality: LPDT at [38]. His Honour characterised the errors that had been made by the Tribunal in that case as involving a misconstruction of Direction 90, leading to a failure to comply with s 499(2A) of the Migration Act. In assessing the materiality of those errors, Beech-Jones J held that the Tribunal's misconstruction of Direction 90 had affected its findings that the appellant's conduct was "very serious", notwithstanding that it might have been open to the Tribunal to reach that finding if it had not misconstrued Direction 90: LPDT at [46]. The misconstruction also affected the Tribunal's findings that there was a "convincing likelihood" that he would engage in "further very serious offending" should he remain in Australia, and its findings on the expectations of the Australian community.
62 Justice Beech-Jones rejected the Minister's submission that, absent the error, the Tribunal would have assessed the appellant's crimes as serious and "the same outcome would have ensued" (at [48]). After noting that "the structure of Direction 90 … is such that an assessment of the seriousness of the non-citizen's conduct is an evaluative exercise which informs the assessment of the relative weight to be attached to the two primary considerations that were relevant to this case", Beech-Jones J stated at [49]:
In this case, a court could only be affirmatively satisfied that the outcome would inevitably have been the same had the error not been made if the court assumed the function of the Tribunal and assessed for itself the relative seriousness of the appellant's crimes and the weight to be attached to the primary considerations relating to the relative seriousness of those crimes, and then, in light of those assessments, weighed the competing considerations against each other. Such an approach is impermissible. The evaluative nature of the Tribunal's decision was such that the failure to comply with so much of Direction 90 that related to the assessment of the nature and seriousness of the appellant's crimes meant that there was a "realistic possibility" that the outcome of the decision would have been different had the error in construing and applying Direction 90 not been made. The Tribunal's error was jurisdictional. The Tribunal's decision was made "outside jurisdiction".
(Citations omitted.)
63 The decision in LPDT illustrates that, where a legal error has been made in the application of Direction 90, meeting the threshold of materiality is not difficult or onerous. Of course, each case will turn on its own particular circumstances, including the nature of the error and the manner in which the reasons are expressed. However, it is not permissible for the Court to speculate as to how the Tribunal might have reasoned or what conclusions it might have reached if it had not made the error in question. In particular, the Court on judicial review cannot step into the shoes of the Tribunal and attempt to perform the evaluative exercise required in the application of a Ministerial Direction such as Direction 90. Once an applicant has established that there is an error and that there exists a realistic possibility of the outcome being different, then unless there is some basis on which the Court can be affirmatively satisfied that the Tribunal would inevitably have made the same decision, without crossing the line that separates judicial review of the legality of a decision from a review of its merits, the error will be material. For example, there might be an independent basis for the Tribunal's decision that is unaffected by any error, or the error in question might be "so insignificant" that it could not have materially affected the decision (compare Minister for Aboriginal Affairs v Peko-Wallsend Ltd (1986) 162 CLR 24 at 40-41 (Mason J)).
64 In the present case, the Minister submits that the Tribunal's admitted error in having regard to the appellant's juvenile offending was not a material error.
(a) First, the Minister submits that the appellant implicitly accepted before the Tribunal that he had committed the offences in question or had engaged in the conduct giving rise to the offences, so that the Tribunal was free to make the same findings that it did based on the appellant's admissions before it.
(b) Secondly, the Minister submits that, "objectively and rationally, it is very difficult to see how the appellant's juvenile offending could have played such a significant part in the Tribunal's decision to the point that, even if such offending had never occurred, the Tribunal's decision could have realistically been different".
65 In relation to the first basis, the Minister refers to the Tribunal's reasons at [45], where it is stated in relation to the two offences dealt with by the Children's Court that the appellant "in evidence could not remember the circumstances of his youth" and that he "described himself as young and stupid". The Minister submits that the decision in Lesianawai does not prevent the Tribunal from taking into account the conduct the subject of the appellant's juvenile offending "where there was evidence before the Tribunal (beyond the fact of being charged with the relevant offending and having pleaded/found guilty in respect of such offending) that such conduct had been engaged in".
66 In relation to the second basis, the Minister contends that the offending committed by the appellant as a 15-year old comprised two offences in an otherwise long and serious offending history, and that those two offences were "objectively of little weight" given that they occurred a long time ago and that little was known about the underlying facts. Rather, it is submitted that the Tribunal's conclusions were focused on the seriousness of the appellant's domestic and family violence offending, and that it is "fanciful" to think that its conclusions about his propensity for violence and his risk of re-offending in respect of family violence issues was materially impacted by his juvenile "convictions". The Minister submits that materiality "is a qualitative analysis, not a quantitative one" (emphasis in original), and that "[i]n assessing the materiality of an error, the Court's task is to conduct a counterfactual to ascertain the objective possibility of the result of the case being different". In the Minister's submission, this requires consideration of how and to what extent the juvenile offending weighed against the appellant. The Minister argues that the Court can and must ascertain for itself the objective possibility that the particular findings made by the Tribunal would still have made having regard to its reasons and "all relevant evidence before the Court".
67 More particularly, the Minister submits that the Tribunal's findings about the escalation in the appellant's offending were inevitable even if the juvenile offending had never occurred. Further, the Minister submits that the Tribunal would still have found that the appellant commenced offending "as a youth" or "as a juvenile" (Tribunal's reasons at [7], [121], [152]), based on subsequent offences that were committed by the appellant as a 17-year old (driving as a learner unaccompanied and without displaying "L" plates, and driving with a "middle range" prescribed concentration of alcohol). In respect of the latter submission, however, it is clear that the Tribunal proceeded on the basis that the "road traffic offences" for which the appellant was convicted in 2008 formed part his criminal history "as an adult": see Tribunal's reasons at [8]. While this was strictly inaccurate, given that the appellant was 17 years old at the date of the 2008 convictions, it reveals that the Tribunal's references to the appellant's offending "as a juvenile" or "as a child" must be taken as references to the offences that were dealt with by the Children's Court in 2005, being those which attracted the Children Proceedings Act and ss 85ZR and 85ZS of the Crimes Act.
68 In our view, the approach advocated by the Minister is contrary to, and has been overtaken by, the High Cout's reasoning in LPDT. In assessing whether the threshold of materiality is met in relation to the Tribunal's error, it is not permissible for the Court "to attempt to discern how the Tribunal would have reasoned" if it had not fallen into error, nor to revisit the evaluative assessment that was engaged in by the Tribunal in its application of Direction 90. It is sufficient to demonstrate that the error was material if "there is a possibility, not fanciful or improbable, that the decision that was made in fact could have been different if the error had not occurred": LPDT at [36]. Jurisdictional error will be established where there is an error which gives rise to a realistic possibility that the outcome could have been different "unless there is identified a basis on which it can be affirmatively concluded that the outcome would inevitably have been the same had the error not been made": LPDT at [16].
69 In the present case, the Tribunal referred to the appellant's juvenile offending as a 15-year old at a number of points in its reasons.
(a) The Tribunal's summary of the appellant's "offender history" commenced with a recitation of those offences, stating that "[t]he [appellant's] first offending was a juvenile": Tribunal's reasons at [7].
(b) In dealing with the nature and seriousness of the appellant's conduct to date, in the context of "Primary Consideration 1", the Tribunal again stated that "[t]he [appellant's] first offending commenced when he was a child", repeating the details of the offences for which the appellant had been dealt with by the Children's Court when he was 15 years of age "and had been in Australia for about 7 years": Tribunal's reasons at [44]. The Tribunal made clear that its assessment was informed by "[t]he nature of the [appellant's] offending to date, including any escalation in offending": Tribunal's reasons at [64].
(c) Later, in the context of its assessment of the expectations of the Australian community, the Tribunal specifically referred to the fact that the appellant "commenced offending as a youth": Tribunal's reasons at [121]. References to the appellant's "history of violence" should also be understood as encompassing the violent offences committed by the appellant as a juvenile: see Tribunal's reasons at [121], [123].
(d) When considering the appellant's links to the Australian community, the Tribunal commented that the appellant had arrived in Australia in 1998 when he was 8 years of age and "began offending as a juvenile approximately seven years after arriving in Australia". On the other hand, the Tribunal treated this consideration as weighing heavily in the appellant's favour and did not regard such a passage of time as enlivening the obligation under para 9.4.1(2)(a)(i) of the Direction to give less weight to the fact that the appellant arrived in Australia as a young child or the length of time the appellant had resided in Australia: Tribunal's reasons at [152]-[153].
(e) The Tribunal stated in its conclusion that it had had regard to "the considerations referred to in the Direction" in considering whether there was another reason to revoke the mandatory visa cancellation under s 501CA(4): Tribunal's reasons at [155]. The Tribunal found that, "taking into account all of the Considerations in the Direction, they weigh against the revocation of the mandatory cancellation of the [appellant's] visa": Tribunal's reasons at [159]. As a consequence, to the extent that the Tribunal's evaluation of each of the primary and other conditions was affected by its error in having regard to the appellant's juvenile offending, that error might have contributed to the Tribunal's overall evaluation in the exercise of the power conferred by s 501CA(4).
70 This is not to deny that the Tribunal placed significant weight on the appellant's domestic violence offences in 2019 and 2020, including in the context of its findings directed to the "escalating level of seriousness" of the appellant's offending: see e.g. Tribunal's reasons at [55]. Nevertheless, it cannot be assumed that the Tribunal's view of the "escalation" in the appellant's offending was unaffected by its error in treating the appellant's juvenile offending as a 15-year old as the starting point.
71 In all of the circumstances, we do not consider that the Tribunal would inevitably have reached the same decision if it had not impermissibly taken into account the appellant's juvenile offending. Rather, noting that the Court cannot itself undertake an evaluation on the merits, there is a realistic and non-fanciful possibility that the Tribunal's decision might have been different if the error had not occurred. The threshold of materiality is met, and the Tribunal's decision is beyond jurisdiction.