The appropriate order as to costs
11 It is undoubted that, under s 43 of the Federal Court of Australia Act 1976 (Cth), the Court has a wide discretion in relation to making orders for the costs of any proceedings.
12 However, it is also well established that, as a general rule, costs should follow the event, in that they are usually awarded in favour of the successful party: see Oshlack v Richmond River Council (1998) 193 CLR 72, 86 [35], 96 - 97 [66] - [67], 120 - 123 [134]. In that principle, the "event" is understood as referring to the "practical result" of a particular claim: Doppstadt Australia Pty Ltd v Lovick & Son Developments Pty Ltd (No 2) [2014] NSWCA 219 [15].
13 Without in any way diminishing the broad discretion, it is also generally accepted that where, in a proceeding, there are multiple parties or issues, and the victor has met with mixed success, the Court's legitimate discretion extends to the making of a single order for costs, albeit apportioned to reflect the partial success: see Kazar, in the matter of Frontier Architects Pty Limited (in liq) (No 2) [2010] FCA 1474 [10] - [13]; BHP Billiton Iron Ore Pty Ltd v National Competition Council (No 2) [2007] FCA 557 [11]. The task of making such an apportionment is an evaluative one: Australian Trade Commission v Disktravel [2000] FCA 62 [5]: which is necessarily "impressionistic and intuitive", though informed by "the extent to which particular issues contributed to the costs" and the extent to which a party was ultimately successful: HP Mercantile Pty Ltd v Dierickx (No 2) [2012] NSWSC 1430 [32].
14 It was suggested that, in relation to applications for security for costs, the costs should be reserved, in the cause or, if the defendant is successful, that the costs be the defendant's costs in the cause. The justification given for this was that, if the defendant is ultimately not successful, it should not be entitled to recover the costs of an application for security which was effectively inutile and should not have been made.
15 However, the breadth of the discretion renders it inappropriate to limit it by general rules or guidelines. Moreover, applications such as the current one are commonplace and, as such, the parties know (or should know) the relevant principles on which they will be determined. They are also cognisant of the materials required for the application. Further, it is usual that the evidence on which the parties rely for the application is not revisited in the course of the hearing of the action. In this sense, the application is self-contained, determined on its own material and principles, and any order made that security be provided is not conditional or contingent.
16 There is, therefore, no reason why parties who join issue on such an application should not be subject to the usual rule for costs: cf Newtimber (Operations) Pty Ltd v Tarong Energy Corporation Limited (No 2) [2011] FCA 363 [14] - [17], [32] - [33]; O'Keeffe Nominees Pty Ltd v BP Australia Ltd (No 2) (1995) 55 FCR 591, 598 - 599. The party against whom the application is made can consider its merits and respond accordingly. If they unwisely oppose it, it is appropriate that they pay the costs of doing so and that is so even if that party is ultimately successful in the litigation. The purpose of the order is to provide security for the contingency that the action is not successful. Its import is not diminished merely because that contingency does not come about.