Re State Public Services Federation; Ex parte Attorney General for WA, Qld; Re Electrical Trades Union of Australia & Ors; Ex parte State of NSW; Ex parte Sydney Electricity

The High Court of Australia considered applications for writs of prohibition and certiorari brought by the Attorney-General for Western Australia and the State of New South Wales, and by various unions including the Electrical Trades Union of Australia. These applications sought to challenge decisions made by Deputy Presidents of the Australian Industrial Relations Commission and a Commissioner of the Commission. The core of the dispute involved the jurisdiction of the Australian Industrial Relations Commission to make certain awards and the extent to which state industrial tribunals could regulate industrial matters within their respective states.

The central legal issues before the High Court were whether the Australian Industrial Relations Commission had exceeded its constitutional or statutory powers in making awards that purported to bind state public sector employees and state-owned corporations, and whether such awards were inconsistent with the legislative powers of the states. Specifically, the Court had to determine the scope of the "industrial disputes" that the Commonwealth Commission could arbitrate and the implications of Section 109 of the Constitution concerning the potential invalidity of state laws where they conflicted with Commonwealth legislation or awards.

The Court's reasoning focused on the constitutional framework governing industrial relations in Australia, particularly the division of powers between the Commonwealth and the States. It examined the nature of the disputes referred to the Australian Industrial Relations Commission and the character of the respondents involved. The Court applied principles of constitutional law to ascertain whether the Commission's actions encroached upon areas reserved for state regulation or were otherwise beyond its constitutional mandate. The Court considered the extent to which federal industrial legislation validly operated in relation to state public employment and state instrumentalities.