Western Australian Mint, Ex parte- Re Hodder and Anor

This matter concerned an application by the Western Australian Mint for a writ of prohibition against the respondents, Hodder and another, who were acting as a Royal Commission. The applicant sought to prevent the Royal Commission from continuing its inquiry into certain matters relating to the Mint's operations, specifically concerning the alleged misappropriation of gold.

The central legal issue before the Court was whether the Royal Commission had exceeded its jurisdiction by inquiring into matters that were not within the scope of its Letters Patent. The applicant argued that the terms of reference for the Commission were too broad and permitted an investigation into conduct that had already been the subject of other proceedings or was otherwise outside the Commission's mandate.

Toohey J considered the principles governing the scope of Royal Commissions and the grounds upon which a writ of prohibition might be granted. His Honour examined the Letters Patent to determine the precise ambit of the Commission's powers and concluded that the inquiry into the alleged misappropriation of gold was within the Commission's jurisdiction. The Court found that the Commission was entitled to investigate the matters complained of, as they fell within the broad terms of reference established by the Governor.

The application for a writ of prohibition was therefore dismissed.