Consideration and determination
12 Both parties conducted the proceeding on the basis that leave to appeal was required (referring to s 24(1A) of the Federal Court of Australia Act 1976 (Cth) (FCA Act)), as well as an extension of time. I have acted on that basis. It accords with what has been described recently by the Full Court as the "prevailing view" being that a costs order, even when made as part of the final disposition of a matter (as is the case here), is interlocutory in nature and therefore requires leave (see Aldi Foods Pty Ltd v Transport Workers' Union of Australia [2020] FCAFC 231; 282 FCR 174 at [69]-[71] per Besanko, Bromberg and O'Bryan JJ). I add that, even if leave to appeal was not required, the applicant would still need an extension of time and, in that context, an assessment of the strength or weakness of the grounds of appeal would arise in any event (see, for example, SZTRY v Minister for Immigration and Border Protection [2015] FCAFC 86 at [6] per Flick, Griffiths and Perry JJ and CGX20 v Minister for Immigration, Citizenship, Migrant Services and Multicultural Affairs [2020] FCA 1441 at [4] per Colvin J).
13 It is well settled that discretionary costs orders are, as a general rule, matters of practice or procedure (see, for example, Hudson v Sigalla [2016] FCA 1204 at [38] per Katzmann J and Gorczynski v Annandale Services Pty Ltd [2004] NSWCA 7 at [16] per Santow JA (with whom Meagher and Ipp JJA agreed)).
14 It is equally well settled that appellate courts are loathe to grant leave to appeal on matters of practice or procedure. As the Full Court (Jacobson, Siopis and Foster JJ) stated in Rickus v Motor Trades Association of Australia Superannuation Fund Pty Ltd [2010] FCAFC 16; 265 ALR 112 at [113] (in the context of whether to grant leave to appeal from a costs order):
There is no doubt that appellate courts are loathe to overturn discretionary costs orders made by single judges. This reluctance reflects a history of caution expressed by appellate courts when asked to overturn discretionary judgments generally.
(To similar effect, see Tenser v Quigley [2016] FCAFC 178 at [28]-[30] per Nicholas, Katzmann and Markovic JJ; Celand v Skycity Adelaide Pty Ltd [2017] FCAFC 222; 256 FCR 306 at [69] per Logan J, Bromberg and Charlesworth JJ agreeing and Zreika v Royal [2019] FCAFC 82; 271 FCR 65 at [317] per Besanko, Farrell and O'Callaghan JJ.)
15 It is apt to set out what Gleeson J said in Snowside Pty Ltd atf Snowside Trust, in the matter of Boart Longyear Ltd [2019] FCA 2159 regarding an application by a non-party for leave to appeal from a costs order (which principles are also apposite to the present proceeding) (emphasis in original):
56 As the costs order involved the exercise of discretion, to succeed on any appeal the Snowside parties will be required to establish error of the kind described in House v The King [1936] HCA 40; (1936) 55 CLR 499 (House v The King) at 505-506: Cleland v Skycity Adelaide Pty Ltd [2017] FCAFC 222; (2017) 256 FCR 306 at [69].
57 In Samsung, after referring to House v The King, the Full Court added at [39]:
In later cases, justices of the High Court have said that, in respect of appeals against decisions involving discretionary judgment, there is a strong presumption in favour of the correctness of the decision appealed from and that that decision should be affirmed unless the appeal court is satisfied that it is clearly wrong (see Australian Coal and Shale Employees' Federation v The Commonwealth [1953] HCA 25; (1953) 94 CLR 621 at 627 per Kitto J; and Mallet v Mallet [1984] HCA 21; (1984) 156 CLR 605 at 634 per Wilson J).
58 The correct approach to the evaluation of the prospects of a party's success on appeal is to consider the proposed grounds of appeal "at a reasonably impressionistic level and enquire whether a ground is 'sufficiently arguable' or 'has reasonable prospects of success'": EBT17 v Minister for Home Affairs [2019] FCA 200 at [4].
59 In Bauer Consumer Media Ltd v Evergreen Television Pty Ltd [2019] FCAFC 71 at [167], Rangiah J noted:
[T]he appeal from the judgment of the primary judge is an appeal by way of rehearing: see Branir Pty Ltd v Owston Nominees (No 2) Pty Ltd (2001) 117 FCR 424 at [20]. The powers of the appellate court are only exercisable where the appellant can demonstrate that the judgment is the result of some legal, factual or discretionary error: Allesch v Maunz (2000) 203 CLR 172 at [23]. The views and conclusions of the trial judge ultimately have to be shown to be wrong, and should not be laid to one side and a simple re-argument of the case take place: Branir at [30].
16 Whether or not leave to appeal should be granted in this case also raises the question whether the applicants' proposed grounds raise an arguable case that the primary judge erred in the exercise of his discretion within the principles in House v King [1936] HCA 40; 55 CLR 499.
17 Applying those general principles here, putting to one side for the moment the strength or weakness of the applicants' case, I accept that the explanation for the applicants' delay and the short period of time involved weighs in favour of an extension of time being granted. For the following reasons, however, I do not consider that this is an appropriate case in which to grant an extension of time or leave to appeal.
18 First, there is the general reluctance to grant leave to appeal in respect of matters of practice or procedure and the applicants have not persuaded me that this case warrants a departure from that approach.
19 Secondly, I am not persuaded by the applicants' argument that they have a sufficiently strong case that the primary judge's costs order is the result of some legal, factual or discretionary error within the principles of House v King. The primary judge correctly acknowledged that the Cabal principle is not an inflexible rule of law. It was nevertheless relevant to the exercise of the Court's discretion on costs (which as noted above the applicants do not dispute). No arguable error has been demonstrated in respect of the primary judge's analysis and conclusions regarding the question whether delay was an issue in the case. On the material before his Honour, it was reasonably open to him to find that delay was an issue, at least up until MB accepted that he required further medical treatment. It is also important to note that the primary judge expressly declined to speculate how the substantive case may have been determined if it had been argued that the temporary purpose for which MB had been brought to Australia had been fulfilled. Nor am I persuaded that the applicants here have identified any arguable irrelevant consideration taken into account by the primary judge.
20 Thirdly, I am not persuaded that substantial injustice would result if an extension of time or leave to appeal is refused, supposing the primary judge's order to be wrong (see Décor Corporation Pty Ltd v Dart Industrial Inc (1991) 33 FCR 397 at 399-400 per Sheppard, Burchett and Heerey JJ). MB has been effectively in immigration detention for eight years. He is presumably impecunious and arguably has no assets or funds, at least in Australia, to satisfy an order for costs against him. Nor would any such order have any administrative value in terms of preventing MB's re-entry to Australia because he has the indelible status of an "unauthorised maritime arrival", which itself will bar him from being granted a visa unless a personal non-compellable power is exercised in his favour. Moreover, as MB points out, it is difficult to see how this matter raises any broader issue of general principle regarding the award of costs in unsuccessful habeas corpus cases in circumstances where the High Court has recently ruled by majority that this remedy is generally not available in cases such as this (see Commonwealth of Australia v AJL20 [2021] HCA 21; 95 ALJR 567).
21 Finally, I have great difficulty seeing how the primary judge's Costs Judgment has any precedential value as it turns very much on its own facts and circumstances.