R v Taylor; ex parte Professional Officers' Association - Commonwealth Public Service

The Professional Officers' Association - Commonwealth Public Service (the prosecutor) sought a writ of prohibition against the Industrial Registrar and the Association of Professional Engineers (the respondent organisation). The dispute arose from the respondent organisation's application to the Industrial Registrar to amend its rules by deleting a proviso that excluded Commonwealth public servants from membership. The prosecutor contended that the proposed amendment would allow Commonwealth public servants not engaged in industry to join the respondent organisation, which it argued was contrary to the Constitution and relevant Commonwealth legislation.

The High Court was required to determine whether the Industrial Registrar had the jurisdiction to approve the proposed amendment to the respondent organisation's rules. Specifically, the court had to consider whether the Commonwealth Conciliation and Arbitration Act, read in conjunction with the Arbitration (Public Service) Act, permitted the registration of an organisation whose membership included Commonwealth public servants not engaged in industry, and whether such legislation, if it did permit this, was within the constitutional powers of the Commonwealth Parliament.

The Court held that the Industrial Registrar was acting within his statutory powers and regulations in considering the application for amendment. The Chief Justice, Latham C.J., noted that the Commonwealth Parliament possessed broad powers to legislate regarding the Public Service, including the determination of employment terms and conditions, and could utilise the machinery of conciliation and arbitration legislation for this purpose. Dixon J. emphasised that prohibition lies only for excess of power, not for an erroneous decision, and that the Registrar was engaged in the function assigned to him by the Act and regulations. The majority of the Court concluded that the Registrar's role in approving rule changes was procedural and that any potential constitutional invalidity of the resulting membership composition was a matter for substantive challenge, not a ground for prohibition at this stage.

Consequently, the High Court discharged the order nisi for prohibition. The prosecutor was ordered to pay the costs of the respondent association.