Hume v Palmer

The case of *Hume v Palmer* concerned an appeal to the High Court of Australia from a conviction in a New South Wales Court of Petty Sessions. The appellant, the master of a steamship registered in Australia and engaged in inter-State trade, was charged under the *Navigation Act 1901* (N.S.W.) for contravening collision regulations within Port Jackson. The appellant contended that the State legislation was inconsistent with the Commonwealth *Navigation Act 1912-1920* and its associated regulations, rendering the State law invalid under section 109 of the Constitution, and that therefore the Magistrate lacked jurisdiction.

The High Court was required to determine two primary legal issues. Firstly, whether an appeal from the Magistrate's decision lay to the High Court, considering the Magistrate's exercise of jurisdiction in relation to a constitutional question. Secondly, and more substantively, the Court had to ascertain whether the provisions of the New South Wales *Navigation Act* and its collision regulations were inconsistent with the Commonwealth *Navigation Act* and its regulations, and consequently invalid under section 109 of the Constitution. The Court also considered whether the Commonwealth regulations, by virtue of Article 30, preserved the operation of State regulations for specific harbours, and whether the Commonwealth legislation itself was valid, having regard to the *Merchant Shipping Act 1894* (Imp.) and the *Colonial Laws Validity Act 1865* (Imp.).

A majority of the High Court (Knox C.J., Isaacs, Gavan Duffy, and Starke JJ.) held that the appeal was competent, as the Magistrate's decision necessarily involved the interpretation of the Constitution. On the substantive issue, the majority found that the New South Wales *Navigation Act* and its collision regulations were inconsistent with the Commonwealth *Navigation Act* and its regulations, and therefore invalid under section 109 of the Constitution. This inconsistency arose from differences in penalties and enforcement mechanisms, despite the collision rules themselves being in identical terms. The majority also concluded that Article 30 of the Commonwealth regulations did not preserve the State regulations in this instance, as the New South Wales regulations were not considered a "special rule, duly made by local authority" in the context of the article. Furthermore, the Court held that the Commonwealth *Navigation Act* and its regulations were valid, being authorised by section 735 of the *Merchant Shipping Act 1894* and not invalidated by the *Colonial Laws Validity Act 1865*. Higgins J. dissented on the merits, finding no inconsistency between the State and Commonwealth legislation in this case, particularly in light of Article 30 of the Commonwealth regulations.

Consequently, the majority of the Court allowed the appeal, quashed the conviction, and set aside the orders made by the Magistrate.