O Gilpin Ltd v Commissioner for Road Transport and Tramways (NSW)

The Commissioner for Road Transport and Tramways (NSW) appealed to the High Court from a decision of a Court of Petty Sessions of New South Wales concerning O. Gilpin Ltd. The dispute arose from a charge imposed on O. Gilpin Ltd. under the State Transport (Co-ordination) Act 1931 (NSW) for operating a motor vehicle carrying its own goods from Victoria to New South Wales. The company contended that the charge and the relevant provisions of the Act were invalid as they infringed sections 90 and 92 of the Australian Constitution, and that its vehicle did not constitute a "public motor vehicle" as defined by the Act.

The High Court was required to determine whether the provisions of the State Transport (Co-ordination) Act 1931, and specifically the charge imposed under section 37, contravened section 92 of the Constitution by unduly interfering with inter-State trade, commerce, and intercourse. Additionally, the Court had to consider whether the charge constituted a customs duty, thereby infringing section 90 of the Constitution. The Court also had to determine if the company's motor vehicle, used for transporting its own goods across state borders, fell within the definition of a "public motor vehicle" under the Act.

A majority of the High Court (Gavan Duffy C.J., Rich, Evatt, and McTiernan JJ.) held that the provisions of the State Transport (Co-ordination) Act 1931 and the charge imposed under section 37 did not contravene section 92 of the Constitution. They applied the principles established in *Willard v. Rawson* and *R. v. Vizzard; Ex parte Hill*. The Court further held that the charge was not a customs duty and therefore did not infringe section 90 of the Constitution. The Court also found that the company's vehicle was indeed a "public motor vehicle" within the meaning of the Act. The Court also confirmed its jurisdiction to hear the appeal, as the matter involved an interpretation of the Constitution.