Cunningham v The Commonwealth

In *Cunningham v The Commonwealth*, the plaintiffs, retired members of Parliament, challenged amendments to various Commonwealth Acts and Determinations by the Remuneration Tribunal concerning parliamentary superannuation and travel entitlements, specifically the "Life Gold Pass". The dispute centred on whether these legislative changes and determinations constituted an acquisition of property otherwise than on just terms, contrary to section 51(xxxi) of the Australian Constitution. The matter came before the Full Court of the High Court of Australia by way of a special case stated by the parties.

The primary legal issue before the Court was to determine whether the specified amendments to the *Parliamentary Contributory Superannuation Act 1948* (Cth), the *Remuneration Tribunal Act 1973* (Cth), and the *Members of Parliament (Life Gold Pass) Act 2002* (Cth), along with subsequent determinations made by the Remuneration Tribunal, amounted to an acquisition of property of the plaintiffs without just terms, thereby contravening section 51(xxxi) of the Constitution. The Court was asked to consider whether these legislative and administrative actions affected any property of the plaintiffs and, if so, whether the terms of any such acquisition were just.

The Court reasoned that the "Life Gold Pass" had historically been provided by the executive government as a gratuity, meaning it was a privilege that was inherently defeasible and liable to modification or extinguishment. The Court found that the amendments and determinations did not alter this fundamental nature of the entitlement. Consequently, the Court concluded that these changes did not constitute an acquisition of property within the meaning of section 51(xxxi) of the Constitution, as the plaintiffs did not possess a vested property right that was being acquired. The Court answered the first question in the negative.

The Court ordered that the questions stated in the special case be answered as follows: Question One: No. Question Two: Unnecessary to answer. Question Three: The plaintiffs were to pay the costs of the proceedings.