Constitutional Powers (Coastal Waters) Act 1979 (TAS)

In the matter of the Constitutional Powers (Coastal Waters) Act 1979 (TAS), the High Court of Australia was called upon to determine the validity of a request by the Parliament of Tasmania to the Commonwealth Parliament to extend its legislative powers over coastal waters. The Commonwealth argued that the State's request was invalid, as it did not meet the requirements of section 51(xxxviii) of the Australian Constitution, which allows States to request the Commonwealth to enact laws on matters of State legislative power. Tasmania contended that its request was valid and should be acted upon by the Commonwealth.

The central legal issue before the Court was whether the request made by Tasmania was valid and complied with the constitutional requirements. Specifically, the Court needed to determine if the request was made in good faith, was not for an improper purpose, and was not of a nature that would be contrary to the public interest. Additionally, the Court examined whether the request was sufficiently specific and whether the Commonwealth had a discretion to refuse the request.

The Court found that the request by Tasmania was valid and should be implemented by the Commonwealth. The Court held that the request was made in good faith and for a proper purpose. The Court also found that the request was sufficiently specific and did not give the Commonwealth an unfettered discretion to refuse it. The Court concluded that the Commonwealth was obliged to enact the requested legislation to extend Tasmania's legislative powers over coastal waters.

The Court's decision mandated that the Commonwealth enact legislation in accordance with the terms requested by Tasmania, thereby extending its legislative powers over coastal waters. This ruling reinforced the cooperative federalism envisioned in the Australian Constitution, where States and the Commonwealth work together to address matters of national importance.