5 Whereas the reference under s 193 sought a reference to a Full Bench of the Commission as opposed to the Commission in Court Session, it was the general consensus of the parties at the commencement of the hearing of the respondent's motion that it would be appropriate, pursuant to s 176 of the IR Act, to reconstitute the Full Bench of the Commission as a Full Bench of the Commission in Court Session. This was done. It was also considered appropriate that the matter should be dealt with by the Commission in Court Session invested with the judicial power of the Commonwealth pursuant to s 39(2) of the Judiciary Act 1903 (Cth). The Industrial Relations Commission in Court Session is a superior court of record: see s 152 of IR Act. See also Taudevin v Egis Consulting Australia Pty Ltd (No 2) (2001) 131 IR 124; Veta Limited v Evans [2004] NSWIRComm 336. What was sought by the respondent was a declaratory order under s 154 of the IR Act, and the making of such orders is within the exclusive jurisdiction of the Commission in Court Session.
6 It may be seen that whilst the matter was initially before the Commission, for the reasons expressed in the earlier judgment on jurisdiction it was considered appropriate for the matter to be heard and determined by the Commission in Court Session. In the ordinary course, it might be expected that the usual rule regarding an award of costs would apply, that is " … a wholly successful defendant should receive his costs unless good reason is shown to the contrary": Milne v Attorney General for the State of Tasmania (1956) 95 CLR 460 at 477. See also Oshlack v Richmond River Council (1998) 193 CLR 72.
7 However, there are particular considerations relevant to the issue of costs in these proceedings. Firstly, the exercise of powers under Chapter 3 Part 1 of the Act to deal with industrial disputes lies with the Commission. No costs may be awarded by the Commission when exercising power under Pt 1 of Ch 3 of the Act, except in the limited circumstances defined by s 181(2), which are not relevant here. If a question of jurisdiction arises, it is for the Commission to satisfy itself that it has jurisdiction. If the matter had remained before the Commission, as opposed to the Commission in Court Session, there would be no order as to costs. In the present case, the parties considered it appropriate for the Commission in Court Session to hear the jurisdictional issue because of the nature of that issue and because the motion sought declaratory relief pursuant to s 154 of the Act.
8 In Commissioner for Children and Young People v "A" (No 2) (2004) 132 IR 112 the Full Bench considered a motion seeking orders that the respondent pay the appellants' costs of the appeal and costs associated with the s 154 application at first instance. The Full Bench observed at [26]:
26 That proceedings would generally arise in the industrial jurisdiction of the Commission is of considerable significance when approaching the issue of costs in proceedings under s 154, as has been touched upon in two recent decisions of the President: see Health and Research Employees' Association of New South Wales v Baptist Community Services NSW and ACT (2002) 122 IR 178 at 190 and Police Association of New South Wales v Commissioner of Police (2002) 123 IR 301 at 325. As his Honour observed in those decisions, observations with which we would agree, as a matter of practice, the fact that declaratory orders are sought in relation to issues that would generally fall within the industrial jurisdiction of the Commission, or in relation to issues that could truly be identified as having an intimate connection with the Commission's industrial or arbitral jurisdiction, is a consideration that would generally be relevant to the exercise of the discretion to award costs. The observations of his Honour in the latter case were implicitly approved by the Full Bench in New South Wales Teachers Federation v Managing Director NSW TAFE Commission (2003) 123 IR 384 at 394.
9 We consider the jurisdictional issue raised in these proceedings was intimately connected with the industrial jurisdiction of the Commission and that it would be inappropriate to exercise our discretion to award costs simply because the nature of the issue called for the matter to be dealt with by the Commission in Court Session, a course not put in issue by any party.
10 Secondly, the issue raised by the motion raised a substantial question about the Commission's powers to deal with industrial disputes in the face of the provisions in Part VID of the Workplace Relations Act and the operation of s 109 of the Constitution. Both parties had a strong interest in having the jurisdictional issue determined, but we consider there was also a wider public interest in having a matter of general importance determined that went beyond the private interests of the parties.
11 Accordingly, we consider the appropriate outcome is that the parties bear their own costs of the proceedings and we so order.