Reg v Cain; Ex parte Evatt

The case of *Reg v Cain; Ex parte Evatt* involved an application for a writ of prohibition brought by Evatt against the Commonwealth Court of Conciliation and Arbitration, presided over by Mr Justice Cain. The dispute concerned the validity of certain actions taken by the Arbitration Court in relation to a dispute between the Australian Workers' Union and the Commonwealth. Evatt sought to prohibit the Arbitration Court from proceeding further in the matter.

The central legal issue before the High Court of Australia was whether the Arbitration Court had jurisdiction to make an order for the deregistration of the Australian Workers' Union. This question hinged on the interpretation of the *Conciliation and Arbitration Act 1904* (Cth) and, in particular, the scope of the powers conferred upon the Arbitration Court by that legislation. The applicant argued that the Court had exceeded its statutory authority.

The High Court, in its judgment, considered the provisions of the *Conciliation and Arbitration Act* relating to the deregistration of organisations. The Court reasoned that the Act, as it stood, did not grant the Arbitration Court the power to deregister an organisation on the grounds that were being considered in the proceedings before the Arbitration Court. The Court applied the principle that statutory powers must be exercised strictly within the limits prescribed by the enabling legislation, and that any action taken beyond those limits is invalid for want of jurisdiction.

Consequently, the High Court made absolute the order nisi for prohibition, thereby preventing the Arbitration Court from proceeding with the deregistration of the Australian Workers' Union.