The interlocutory relief sought
7 The NRA seeks either a stay of orders of the Commission, or in the alternative an interim injunction to prevent the orders of the Commission taking effect. Mr Harding for the SDA submitted that even if the Court were so minded, it was not appropriate for the Court to issue an interim injunction in these circumstances because:
in substance, the NRA was seeking a stay of the order of the Commission;
by its nature the purpose of an interim injunction is to restrain a person from conduct, and the only object of the injunction could be the Commission itself; and
no undertaking as to damages had been offered, as was usual in respect of an application for an interlocutory injunction.
8 Mr Mahendra for the NRA submitted that the interim injunction the SDA sought was not intended to be a restraint, but rather in the nature of a writ of prohibition, and therefore no undertaking as to damages was required.
9 An injunction is an equitable remedy, granted at the discretion of the Court in accordance with equitable principles. In my view no injunctive relief is available in this case because:
I agree with Mr Harding for the SDA that the NRA in substance seeks a stay of the Commission's order, and the Court ought properly consider whether a stay should be ordered in accordance with principles relevant to a stay.
It is not in dispute that the Court is empowered to grant a stay of orders of the Commission in suitable circumstances: Energy Australia Yallourn Pty Ltd v Construction, Forestry, Mining and Energy Union [2013] FCA 360; MI&E Holdings Pty Ltd v Communications, Electrical, Electronic, Energy, Information, Plumbing, Postal and Allied Services Union of Australia [2013] FCA 944.
An injunction is intended to restrain a person against whom it is directed: Maritime Union of Australia v Patrick Stevedores Operations Pty Ltd [1998] 4 VR 143, and see discussion in Spry ICF, The Principles of Equitable Remedies (9th ed, Lawbook Co, 2014) at 332-333 and Dal Pont GE, Equity and Trusts in Australia (5th ed, Lawbook Co, 2011) at 935-936. To that extent, an injunction "at large" which appears to be the tenor of the injunctive relief sought by the NRA, is not well-founded.
I am not persuaded of the utility - or indeed, the jurisprudential foundation in these circumstances - of an order which is formally an equitable injunction, but is really in the nature of the prerogative writ of prohibition, as urged upon me by the NRA. While historically there has been some overlap between injunctions and public law remedies (see, for example, the discussion in Aronson M and Groves M, Judicial Review of Administrative Action (5th ed, Lawbook Co, 2013) at 933 et seq), I am not persuaded on the material before me that an injunction ought lie where public law remedies such as prohibition are available. This is particularly so in circumstances where the NRA, in its primary application, has sought public law remedies. To that extent, I am not persuaded that I should grant an injunction restraining the Commission from performing any act. Indeed, it is difficult to know which act or acts the Commission ought be restrained from, other than enforcing its own order.