Johnstone v The Commonwealth

The High Court of Australia considered the case of *Johnstone v The Commonwealth*, brought by the applicant, Johnstone, against the respondent, the Commonwealth of Australia. The dispute concerned the validity of certain actions taken by the Commonwealth in relation to the applicant's property.

The central legal issue before the Court was whether the Commonwealth had lawfully exercised its executive power under section 61 of the Constitution to acquire or interfere with the applicant's property rights. Specifically, the Court had to determine if the actions constituted an acquisition of property for which just terms were constitutionally required under section 51(xxxi) of the Constitution, and if so, whether those terms were indeed just.

The Court reasoned that the Commonwealth's actions, while potentially impacting the applicant's property, did not amount to an "acquisition of property" in the constitutional sense. Applying established principles, the Court held that section 51(xxxi) of the Constitution is engaged only when the Commonwealth acquires property for its own purposes, not when it exercises its regulatory or executive powers that may incidentally affect property rights. The Court found that the Commonwealth's actions were within its executive power and did not involve the compulsory acquisition of property, thus section 51(xxxi) was not enlivened.

The High Court dismissed the applicant's application.