Babet & Anor v Commonwealth of Australia; Palmer v Commonwealth of Australia

The High Court of Australia considered a challenge brought by Mr. Babet and Mr. Palmer against the Commonwealth of Australia. The applicants sought to restrain the Commonwealth from entering into certain agreements with the State of Victoria concerning the development of a quarantine facility. The core of the dispute concerned the constitutional validity of the Commonwealth's proposed actions and the scope of its executive power.

The central legal question before the Court was whether the Commonwealth possessed the constitutional authority to enter into the proposed agreements, specifically in relation to the development and operation of a quarantine facility. This involved an examination of the extent of the Commonwealth's executive power under section 61 of the Constitution and whether the proposed actions fell within the scope of that power, or if they encroached upon areas reserved for the States.

In his judgment, Gageler CJ found that the Commonwealth did not have the constitutional power to enter into the agreements. His Honour reasoned that the executive power of the Commonwealth, while broad, is not unlimited and must be exercised in accordance with the Constitution. The Court determined that the proposed agreements, which involved the Commonwealth in the direct management and operation of a quarantine facility, extended beyond the scope of the Commonwealth's constitutional functions and powers, particularly in relation to matters primarily within State responsibility. The Court concluded that the proposed actions were not supported by any head of Commonwealth legislative or executive power.