30 In our view, Sydney Water's application (and its submissions) suffer from difficulties arising from their artificial confinement both in relation to the facts, and in relation to legal principle.
31 The proceedings at first instance, arising from the notification of an industrial dispute, are not limited to the fairness of the dismissal of two employees. As Boland J held in Australian Services Union and Sydney Water Corporation (No 2), the arbitration proceedings presently under way relate to the substantive issue of Sydney Water's injury management policy and to the related or contingent issue of the threatened dismissals. Once this is understood, much of the apparent force of Sydney Water's submissions falls away.
32 As to legal principle, we agree with Boland J's circumspection regarding the inflexible application of the Hill tests to dispute orders made under ss 136 and 137. In Hill itself (at 208), Schmidt J recognised that the exercise of power under s 89(7) was not identical to the exercise of power under ss 136 and 137, although similar considerations would be involved. We also agree with his Honour's observations at [65] concerning the history of s 136:
[65]...The section, I think, owes its existence to the Parliament's concern, in introducing the Industrial Relations Bill 1995, that the Industrial Relations Act 1991 did not invest power in the Commission, in dealing with an industrial dispute, to reinstate or re-employ any one or more employees who were dismissed in the course of an industrial dispute or whose dismissal resulted in an industrial dispute, other than in accordance with the specific provisions dealing with unfair dismissals in Chapter 3, Part 8 of the 1991 Act: see Woolstar Pty Limited v Federated Storemen and Packers Union of Australia (New South Wales Branch) (1992) 45 IR 39; Hansard, Legislative Council, 23 November 1995, 3851.
33 The Full Court of the Industrial Court of New South Wales examined the history of jurisdiction relating to reinstatement in New South Wales industrial tribunals (a jurisdiction which emanates from statutes) in detail in Woolstar Pty Limited v Federated Storemen & Packers Union of Australia (New South Wales Branch) (1992) 45 IR 39. That case concerned reinstatement under the Industrial Relations Act 1991, which the Court contrasted with reinstatement under the preceding Industrial Arbitration Act 1940.
34 The Full Court held in Woolstar that, unlike the 1940 Act (which conferred power to order reinstatement in both the contexts of conciliated industrial disputes and unfair dismissals), the unfair dismissal provisions in the 1991 Act conferred the sole jurisdiction upon the commission to reinstate a dismissed employee. Although the provisions for dealing with industrial disputes by conciliation empowered the Commission to deal with any surrounding industrial circumstances which may arise in relation to mass dismissals occurring during an industrial dispute (such as the dismissals of approximately 400 workers in Woolstar itself), reinstatement was only available under the unfair dismissal provisions of that legislation.
35 Subsequently, in the second reading speech for the Industrial Relations Bill on 23 November 1995, the Attorney General and Minister for Industrial Relations, the Honourable J W Shaw QC, made the following comments in relation to dispute orders under Chapter 3:
Under this bill, the commission may make the following kinds of dispute orders when dealing with an industrial dispute in arbitration proceedings: it may order a person to cease or refrain from taking industrial action; it may order a person to cease a secondary boycott imposed in connection with an industrial dispute; it may order an employer to reinstate or re-employ any one or more employees who were dismissed in the course of an industrial dispute or whose dismissal resulted in an industrial dispute, thus re-investing the commission with its useful pre-1991 Act jurisdiction in this regard.
36 While we agree that the tests formulated in Castlemaine Tooheys as adopted in Hill (on the submissions of both parties) offer some useful guidance for the exercise of power to grant interim orders, it would be wrong to apply, strictly and inflexibly, what are essentially private law and equity principles to the full range of industrial disputes under Chapter 3 of the Act, many of which fall into the realm of a jurisprudence not only more closely aligned to public law but having its own particular features. Industrial disputes may cover a spectrum from what is essentially an isolated, ordinary unfair dismissal case, to an industrial dispute in which dismissals or threatened dismissals are subsidiary, and then to a full-blown collective dispute involving stoppages, lock-outs, and mass dismissals. Across most of the spectrum, there will be factors at play which cannot be accommodated by the Hill tests, and the further the situation approaches the collective dispute at the end of the relevant spectrum, the more strained the application will become. The Hill tests will usually be applicable to applications brought under s 89(7) of the Act.
37 The Commission, in using its powers under the Act to conciliate, arbitrate and generally facilitate the resolution of industrial disputes, is engaged in an undertaking considerably removed from the adjudication of individual civil grievances. In furthering the objects of the Act (including the promotion of efficiency and productivity in the economy of the State and providing for the resolution of industrial disputes in a prompt and fair manner with the minimum of legal technicality), it is vital that the Commission recognise the broad discretion granted by the Act to fashion appropriate relief by reference to the merits of the industrial dispute itself and the steps necessary to resolve it. This will involve a variety of considerations, some of which may include those deriving from private litigation, but more usually will include the public interest in managing the industrial dispute in a fair and just manner with minimum disruption and disputation.
38 The Castlemaine Tooheys tests must be understood in the context of litigation between two individual parties to a private dispute albeit with public law elements, seeking a judicial resolution. In such a context, strict evaluation of the first test in terms of the evidentiary burdens of court proceedings assists the overall integrity of the proceedings by placing a check upon dubious or frivolous claims, claims which are unlikely to succeed and claims which should be concluded at an early stage. But technical evidentiary questions such as whether or not "there is a prima facie case" do not sit as neatly in the context of the arbitration of an industrial dispute by the Commission, charged as it is by the Act with the promotion of various public policies, including those referred to above.
39 In our view, there is no doubt that the essence of the first test (which, in this context, should be posed in terms of whether there is a serious dispute or issue to be resolved between the parties) is satisfied in this case. There was no suggestion that the Union was not genuine in its concerns about the adequacy of Sydney Water's injury management policy and about the potential dismissal of numerous employees (not just Messrs Austin and Bagala) by the application of an allegedly inadequate policy; nor could there be, in our view, given the long-running nature of the dispute and its numerous manifestations before this Commission. These factors also emphasise the genuine nature or enduring quality of the dispute, in the sense the parties themselves have not, to date, been able to resolve it.
40 Moreover, the industrial dispute was broader than an isolated case of unfair dismissal. Boland J rejected Sydney Water's contention that the dispute the subject of the current arbitration proceedings was a "narrow dispute" concerning the threatened dismissal of two employees: as we have already noted, his Honour held in Australian Services Union and Sydney Water Corporation (No 2) that there could be no doubt by 11 April 2005 that the dispute the Commission was attempting to deal with involved not only the immediate issue of the threatened dismissals of Messrs Bagala and Austin but also the substantive issue of Sydney Water's injury management policy.
41 The second Hill test must be treated with much greater caution for this area. While it is relevant to consider "irreparable injury for which damages will not be an adequate compensation" in private law litigation, the preceding discussion makes it abundantly clear that although the second test may well be applicable to orders sought in ordinary unfair dismissal cases pursuant to s 89(7), it will be very unusual for this test to apply to orders sought under ss 136 and 137 in the context of an industrial dispute. As a preliminary point, ss 136 and 137 do not allow for the remedy of compensation. The remedy is confined to either orders preventing a threatened dismissal (s 137(1)(c)) or orders of reinstatement or re-employment (s 137(1)(b).