J C Williamson Limited v Musicians' Union of Australia

J. C. Williamson Limited brought an action in the High Court of Australia against the Musicians' Union of Australia. The dispute concerned the validity of an industrial agreement entered into between the parties on 24 June 1911, and the Union's subsequent actions in commencing proceedings in the Commonwealth Court of Conciliation and Arbitration, which J. C. Williamson Limited alleged were in breach of that agreement. The parties presented a special case to the High Court for determination.

The High Court was required to determine two principal legal issues. Firstly, whether an industrial agreement made by an organisation of employees, which at the time of its making was not entitled to be registered under the Commonwealth Conciliation and Arbitration Act 1904-1911 but whose registration was subsequently validated by an amendment to the Act, was valid and binding. Secondly, whether the High Court possessed jurisdiction to restrain the organisation by injunction from instituting proceedings in the Commonwealth Court of Conciliation and Arbitration in violation of that agreement.

Griffith C.J. and Barton J. held that the agreement was as valid as if it had been made after the passing of the validating legislation. They reasoned that section 4 of the Commonwealth Conciliation and Arbitration Act 1911 retrospectively validated the registration of organisations, thereby validating agreements made by them prior to that amendment. Regarding the jurisdiction to grant an injunction, Griffith C.J. and Barton J. found that the High Court had jurisdiction to restrain the Musicians' Union from commencing proceedings in the Commonwealth Court of Conciliation and Arbitration, as such actions would breach the undertaking given in the agreement not to make further demands. Isaacs J., dissenting on the second issue, questioned whether the agreement constituted an "industrial agreement" within the meaning of the Act, as it did not provide for conciliation or arbitration, and also dissented on the question of the High Court's jurisdiction to grant an injunction.