Consideration
12 We are satisfied that the Full Bench did commit the jurisdictional error identified by the parties and, for the following reasons, we should make the orders to which the parties have consented: Telstra Corporation Ltd v Minister for Broadband, Communications and the Digital Economy (2008) 166 FCR 64 at [43] and [51] per French, Weinberg and Greenwood JJ.
13 Section 186(1) of the Act requires the Commission to approve an agreement if satisfied that the requirements of ss 186 and 187 are met. Section 186(2)(d) requires that the Commission must be satisfied that an agreement passes the "better off overall test". That test is set out in s 193(1) and obliged the Commission to undertake an overall comparison of the agreement with the award.
14 The Full Bench failed to deal with the union's argument that cl 4.3.5(a) of the agreement had the effect of reducing the remuneration of some employees in comparison with that payable under the award. Accordingly, the Full Bench failed to undertake the comparison that was required under ss 186(2)(d) and 193(1) of the Act and so failed to apply itself to the question which those sections prescribed. This amounted to a jurisdictional error: Coal and Allied Operations Pty Limited v Australian Industrial Relations Commission (2006) 203 CLR 194 at 208-209 [31] per Gleeson CJ, Gaudron and Hayne JJ.
15 The union's second argument attempts to have this Court, effectively, decide whether the better off overall test is satisfied under the guise of asserting that the Commission could not reasonably conclude that the agreement satisfied that statutory requirement.
16 In our opinion, questions of construction of the agreement, the award and the industrial circumstances involve matters of fact and degree. Moreover, even if the better off overall test were not satisfied, the Commission is not bound to refuse to approve the agreement. That is because s 189(2) allows the Commission to approve an agreement if it is satisfied that, because of exceptional circumstances, the approval of the agreement would not be contrary to the public interest. Those issues are matters that ss 186(2)(d) and 189 require the Commission to evaluate and decide.
17 Even if the better off overall test were not satisfied, the existence of the discretionary power of the Commission to approve an agreement demonstrates that it is not possible for this Court to determine, as the union sought, that the Full Bench could not have approved the agreement in the exercise of its powers under the Act. The Court's jurisdiction that is invoked in this application, under s 39B of the Judiciary Act and for constitutional writs under s 563, is supervisory.
18 The way in which the Full Bench proceeded left unclear what its formal decision was. In what it stated in [61], that we have quoted above, the Full Bench did not formally record any decision, first, to quash or vary the Commissioner's decision under s 607(3)(a) or, secondly, to refer a matter to the Vice President under s 607(3)(c) to deal with the acceptance of the new undertaking.
19 It is incumbent on the Commission, including the Full Bench, to record formally what it decides so that, first, persons affected will be in a position to seek or enforce whatever remedies they may claim to have to challenge or to seek recognition of that exercise of the Commission's statutory powers, and, secondly, in cases of a reference under s 607(3)(c), the person to whom the reference is made has a clear statement of the subject matter of the reference.
20 The union's application to this Court to quash the Commissioner's decision was misconceived. The union had invoked its right of appeal, under the Act, against that decision, but the appeal miscarried for the reasons we have given. It is for the Full Bench, exercising its appellate power under s 607(3)(c), to determine what order should be made in respect of the Commissioner's decision.