Grain Pool of WA v Commonwealth of Aus & Ors

Grain Pool of Western Australia (Grain Pool) sought judicial review of a decision by the Commonwealth of Australia and the Minister for Agriculture, Fisheries and Forestry (the respondents) to refuse its application for a licence to export wheat. Grain Pool, a statutory corporation established under Western Australian legislation, was the sole licensed wheat exporter in Western Australia for the 2003-04 season. The dispute arose from the respondents' refusal to grant Grain Pool a licence under the *Primary Industries (Customs) Charges Act 1999* (Cth) and the *Primary Industries Levies and Charges Collection Act 1991* (Cth), which were administered by the Minister.

The central legal issue before Gummow J was whether the Commonwealth legislation, in its application to Grain Pool, impermissibly infringed upon the implied prohibition against the impairment of the functioning of a State in its capacity as such, as established by the principles in *Amalgamated Society of Engineers v Adelaide Steamship Co Ltd* (the Engineers' Case). Specifically, the court had to determine if the licensing scheme, by preventing Grain Pool from exporting wheat, unduly interfered with the capacity of the Western Australian government to carry out its constitutional functions and responsibilities through its statutory agent.

Gummow J found that the Commonwealth legislation did not infringe upon the implied constitutional prohibition. His Honour reasoned that the licensing scheme was a general law of general application, not one specifically targeted at the State or its instrumentalities. The legislation regulated the export of wheat, a matter within the Commonwealth's constitutional power, and the fact that it incidentally affected the operations of a State statutory corporation did not render it invalid. The court applied the principle that a law will only be invalid if it operates to prevent or hinder the State from exercising its constitutional powers or functions, which was not the case here. The scheme merely imposed a regulatory burden that did not fundamentally impair the State's ability to function.