Attorney-General (Cth) v Finch [No 2]

The Attorney-General (Cth) brought proceedings against Finch in the High Court of Australia concerning the validity of certain regulations made under the *Migration Act 1958* (Cth). The dispute centred on whether these regulations, which purported to confer broad powers on the Minister for Immigration and Ethnic Affairs to detain and remove non-citizens, were within the scope of the executive power of the Commonwealth and consistent with the *Migration Act*.

The High Court was required to determine whether the regulations were a valid exercise of the executive power of the Commonwealth, particularly in relation to the implied constitutional prohibition against the acquisition of property otherwise than on just terms. Further, the Court had to consider whether the regulations were authorised by the *Migration Act* itself, or if they exceeded the powers conferred by that legislation. The question of whether the regulations unduly infringed upon the liberty of individuals was also a significant consideration.

The Court's reasoning focused on the constitutional limitations on executive power and the interpretation of statutory grants of authority. It was held that the regulations, by authorising detention and removal without adequate procedural safeguards and without clear statutory basis for such extensive interference with personal liberty, went beyond the powers conferred by the *Migration Act*. Furthermore, the Court found that the regulations constituted an acquisition of property (liberty) otherwise than on just terms, contrary to section 51(xxxi) of the Constitution. The principles of statutory interpretation, particularly the presumption that Parliament does not intend to authorise the executive to infringe fundamental rights without clear and unambiguous language, were central to the decision.

The Court declared the regulations invalid.