... it is necessary to consider whether the making of the order sought would be futile and thereby create an injustice to the respondents and cause needless expenditure of public funds if the appeal were otherwise to proceed. This involves consideration of whether the appeal is so devoid of merit that it would be futile to make the order sought. It is recognised that what must be clearly shown before the applicant is denied the right to have his or her appeal heard, is that the appeal would fail.
[17] In Jackamarra v Krakouer [1998] HCA 27; (1998) 153 ALR 276, Brennan CJ and McHugh J were of the view that once an appeal has been commenced, the applicant is entitled to have the appeal determined in the usual way. They said, at 279, that where an extension of time for the taking of an interlocutory step is sought 'the merits of the appeal are not a relevant consideration ... unless, unusually, the Court can be satisfied that the appeal is so devoid of merit that it would be futile to extend time'.
[18] Gummow and Hayne JJ accepted, at 283-286, that on an application for extension of time for the taking of an interlocutory step, it may be appropriate to consider whether it is clear that the appellant has no real prospects of success so that it would be futile to grant the extension of time.
[19] Kirby J said, at 295:
"The party seeking indulgence bears the burden of persuading the decision-maker to grant its request. A consideration relevant to that exercise is whether the case is arguable. If it is hopeless, unarguable or bound to fail, the request for an extension of time will be refused. However, this is basically because to grant it would be futile".
[20] At 297, his Honour observed that the main object of the scrutiny of the merits of the case is to obviate a hearing which would clearly be futile. In considering the merits of the appeal, the Court does not effectively hear the entire appeal. As Gummow and Hayne JJ pointed out in Jackamarra v Krakouer, at 286, if the futility of an appeal can be demonstrated only by hearing the whole argument, there may be no advantage to bringing it forward to a time when a relatively minor procedural irregularity is sought to be corrected. Sometimes the courts have described that process of determining this matter as 'rough and ready' (Jackamarra v Krakouer, at 280). In saying this, the Court probably intended to convey that lack of merit must be very clear before the applicant is deprived of the right to have the appeal considered in the normal way and that usually, such an issue will not be considered at an interlocutory stage if it involves the whole appeal being argued or an examination of the details of the evidence.[7]