The nature of the appeal
31 The appeal to this Court is by way of rehearing: Western Australia v Ward [2002] HCA 28; (2002) 213 CLR 1 at [68]-[71] (Gleeson CJ, Gaudron, Gummow and Hayne JJ). In order to succeed, the appellant must demonstrate some legal, factual or discretionary error as to the manner in which the primary judge dealt with his review application. If error is demonstrated then the Court may substitute its own decision based on the facts and law as they then stand: Allesch v Maunz [2000] HCA 40; (2000) 203 CLR 172 at [23] (Gaudron, McHugh, Gummow and Hayne JJ).
32 If error is demonstrated, but it is not shown to have affected the orders made, then the appropriate order is for the appeal to be dismissed: James Cook University v Ridd [2020] FCAFC 123 at [192] (Rangiah J). In DKX17 v Federal Circuit Court of Australia [2019] FCAFC 10; (2019) 268 FCR 64, a case like the present, it was held (at [63] (Rangiah J, Reeves and Bromwich JJ agreeing) that:
Unless the appellants can demonstrate, not merely error by the primary judge, but also jurisdictional error on the part of the Tribunal, there may be no utility in setting aside the judgment under appeal ... Since it is the judgment of the Court to which an appeal is directed, an error in the reasons for judgment which does not materially affect the correctness of the judgment itself will not usually justify intervention by an appeal court.
33 In particular, where the Court is persuaded that there would be no utility to be served in requiring a matter to be considered or reasons to be given by remitting the matter because the result would not be affected, then the Court may decline to remit the matter for consideration: see, for example, Singh v Minister for Immigration and Border Protection [2017] FCAFC 195 at [32] (Perram, Farrell and Perry JJ).
34 However, these principles assume that the judicial task has been discharged by the primary judge and there is a decision in respect of which a right of appeal may be properly exercised. The judicial task requires proper consideration to be given to the case presented by each party: DAO16 v Minister for Immigration and Border Protection [2018] FCAFC 2; (2018) 258 FCR 175 at [47]-[48] (Kenny, Kerr and Perry JJ). If there are intelligible grounds of review that condescend to particulars to explain the basis for them then they must be considered and reasons must be given as an incident of the judicial process: BZD17 v Minister for Immigration and Border Protection [2018] FCAFC 94; (2018) 263 FCR 292 at [24] (Perram, Perry and O'Callaghan JJ).
35 A different approach to the orders to be made on appeal may be warranted where there has been shown to be a substantial failure by the primary judge to undertake the judicial task. The reasons why that may be so were eloquently explained by Perram J in AAM15 v Minister for Immigration and Border Protection [2015] FCA 804; (2015) 231 FCR 452 at [14]:
One is confronted, then, with the situation that this Court is being called upon in the exercise of its appellate jurisdiction to decide the entirety of the matters which were for trial, including two new grounds, in circumstances where none of the issues to be decided in this Court were ever decided in the Court below. Section 476A of the Act explicitly removes this Court's original jurisdiction in cases of this kind. Of course, the ability of this Court to hear fresh grounds of appeal or to entertain a notice of contention is not circumscribed by s 476A as they are both aspects of the Court's appellate jurisdiction. But s 476A is, I think, relevant to whether I should, by leave, permit fresh grounds and a notice of contention when to do so will mean that this Court performs the trial court's entire function. As a matter of substance, that is what s 476A appears aimed at preventing. There is this further matter, too: Pt 8 of the Act, which regulates judicial review of refugee determinations, ensures that there is one substantive trial in the Federal Circuit Court followed by one substantive appeal to this Court followed by a more cursory review by the High Court. If this Court, in substance, determines a case at first instance by entertaining fresh grounds and a notice of contention this structure is thwarted because no appeal lies to the High Court other than by special leave which is rarely granted and then only on the grounds set out in s 35A of the Judiciary Act 1903 (Cth). If the matter is effectively tried in this Court then the appellant is denied a layer of appellate scrutiny.
36 In BZD17 those views were cited with approval by Perram, Perry and O'Callaghan JJ at [30] where their Honours said:
We agree that the considerations identified in AXL16 and AAM15 tell strongly against this Court ordinarily determining substantive grounds of judicial review which the FCC has failed to determine. Nonetheless in the circumstances of this case, we consider that there are a number of compelling factors against remitting the matter to the FCC. First, both parties submitted at the hearing that they wish the substantive issues on the appeal to be determined by this Court. Secondly, this is a case where, for the reasons given below, the errors are so apparent from the Tribunal's reasons that there would be no apparent utility in remitting the matter to the FCC.
37 Therefore, in a case where a significant aspect of the case advanced below has not been considered by the primary judge, the appropriate relief may be to remit the matter rather than seek to adjudicate the issue for the first time on appeal.
38 The fact that reasons are delivered ex tempore does not excuse the Court from undertaking the judicial task of considering the nature of the case advanced: COZ16 v Minister for Immigration and Border Protection [2018] FCA 46; (2018) 259 FCR 1 at [56] (Griffiths J); and AXL16 v Minister for Border Protection [2018] FCA 208 at [21] (Perram J). However, more general expressions are appropriate in reasons where an applicant does not advance specific submissions: BDQ17 v Minister for Immigration, Citizenship, Migrant Services and Multicultural Affairs [2020] FCA 492 at [20] (Mortimer J). And points of little or no merit may warrant no significant treatment. However, that is because they require very little in order to dispose of them. Precisely what is required by way of reasons will depend upon the nature of the case advanced: Kaur v Minister for Immigration and Border Protection [2019] FCAFC 53; (2019) 269 FCR 464 at [163]-[193] (Murphy, Mortimer and O'Callaghan JJ).