Consideration
17 We would refuse leave to the appellant to raise this new ground of appeal for three reasons, namely:
(1) It was not the basis on which the case was run before the Tribunal and the primary judge;
(2) There is no adequate explanation for the amendment; and
(3) The proposed new ground lacks sufficient merit.
18 The principle governing the Court's appellate jurisdiction is that appeals proceed by way of rehearing. Other than in the most exceptional of cases, parties are bound by the conduct of their case at trial, as Gibbs CJ, Wilson, Brennan and Dawson JJ explained in Coulton v Holcombe (1986) 162 CLR 1 at 7 - 8. The new ground seeks to reduce the conduct of the proceeding before the Tribunal and primary judge to a preliminary skirmish. Ordinarily, the public interest in the finality of litigation would be undermined by allowing a new point to be argued on appeal that the party had not put below, and this is so even if it concerns only a question of law on uncontested facts that would not have changed the conduct of the trial. An appellate court will only permit such a new point to be raised if the interests of justice so require: Coulton 162 CLR at 8; O'Brien v Komesaroff (1982) 150 CLR 310 at 319 per Mason J with whom the rest of the Court agreed: see too Water Board v Moustakas (1988) 180 CLR 491 at 497 per Mason CJ, Wilson, Brennan and Dawson JJ.
19 We are not persuaded that the interests of justice require the grant of leave to rely on the amended ground of appeal. It raises a new argument that represents a significant departure from the case put below.
20 Ordinarily, an explanation is required for the making of an amendment particularly, such as this, on an appeal: Aon Risk Services Pty Ltd v Australian National University (2009) 239 CLR 175 at 215 [103], 217 [111], [112] per Gummow, Hayne, Crennan, Kiefel and Bell JJ: Tamaya Resources Ltd (in Liq) v Deloitte Touche Tohmatsu (2016) 332 ALR 199 at 226 [153] - [159] per Gilmour, Perram and Beach JJ. The mere fact that new counsel has thought of a new point is insufficient. That is the only explanation here and, in our opinion, it is insufficient. Specifically in relation to migration cases, where an adverse decision may have various serious consequences for an appellant, the Court may grant leave to raise such a new point that was not taken below if the point clearly has merit and there is no real prejudice to the respondent in permitting it to be agitated. Where, however, there is no adequate explanation for the failure to take the point, and it seems to be of doubtful merit, leave should generally be refused. See, for example, VUAX v Minister for Immigration and Multicultural and Indigenous Affairs (2004) 238 FCR 588 at 598 [48], CGA15 v Minister for Home Affairs (2019) 268 FCR 362 at 372 [36] and Fualau v Minister for Home Affairs [2020] FCAFC 11 at [13]-[14].
21 Counsel for the appellant sought to persuade us that the new point was one canvassed before her Honour, or at least raised sufficiently to support the grant of leave. However, we do not consider that this argument can be sustained. The appellant's written submissions below and her Honour's reasons did not deal with the matter. Nor did the appellant's written submissions on the appeal identify any error in her Honour's reasons or failure by her to deal with the argument he now seeks to raise. The submissions do not challenge either of the tests that Jackson J in LKQD 167 ALD 17 or Logan J in DOB18 269 FCR 636 applied. That reinforces the conclusion that this is a wholly new point, not an elaboration of something already put below.
22 In our opinion, the new ground lacks any sufficient merit. This is because the Tribunal expressly found that the appellant's convictions in each of the three categories of offending were, first, of their nature, harmful to the Australian community and secondly, such that he posed a serious and significant risk of harm to the community based on his lamentable concatenation of offending were he to be granted a visa. Counsel for the appellant submitted that because the Tribunal in some places referred to "the Australian community" as meaning "harm to one or more members of the Australian community" its findings that the appellant poses the requisite danger to "the Australian community" must be understood to mean "one or more members of the Australian community". On this basis, counsel submitted that the Tribunal applied the wrong test.
23 It is not necessary for the purpose of deciding whether the appellant should have leave to argue the new point to decide whether his submissions on the proper construction of "the Australian community" are correct. Even assuming that they are correct, that is that what he describes as the "quantitative" aspect of the assessment is that there must be a danger to "the population in general" rather than to merely an individual or a segment of the Australian community, there is no reasonable prospect of finding that there was jurisdictional error by the Tribunal. That is because the qualitative nature of the danger assessed by the Tribunal inevitably has a quantitative impact on "the population in general". As we have indicated, that arises from the nature of the offences for which, as assessed by the Tribunal, there was the requisite danger of the appellant committing, namely the promotion of the use of illicit drugs such as heroin, crimes such as burglary and theft and the infliction of unlawful violence on members of the community in general.
24 Thus, the ground lacked any real prospect of success were we to have entertained it.