The Commonwealth and the Postmaster-General v The Progress Advertising and Press Agency Co Pty Ltd

The Commonwealth and the Postmaster-General brought an action against The Progress Advertising and Press Agency Co. Proprietary Ltd. seeking declarations that they held the sole right to print and publish telephone subscriber lists, that Regulation 126A of the Telephone Regulations was valid, and an injunction to restrain the defendant from publishing such lists. The dispute centred on the validity of Regulation 126A, which imposed a penalty on anyone publishing telephone subscriber lists without the authority of the Postmaster-General and declared such lists forfeit.

The High Court was required to determine whether Regulation 126A of the Telephone Regulations was authorised by section 97(r) of the Post and Telegraph Act 1901, and consequently, whether it was intra vires the Governor-General. The Court also considered whether the Act conferred an exclusive right on the Postmaster-General to print or publish telephone subscriber lists.

The Court reasoned that section 97(r) of the Act, which allowed regulations for "all other matters and things which may be necessary for carrying out this Act or for the efficient administration thereof," should be interpreted in light of the specific powers enumerated in the rest of section 97 and the overall scheme of the Act. The judges found that the regulation went beyond the scope of powers typically granted for the internal management of the department or direct dealings with the public. They noted that the Act itself made specific provisions for protecting the department's property and ensuring efficient operations, making it unlikely that such a broad power to control private businesses was intended to be delegated by regulation. The Court applied the principle that general words in a statute should not be construed to impair the liberty of citizens unless clearly indicated, and that regulations should be necessary for carrying out the Act's object and purpose.

The Court held that Regulation 126A was not authorised by section 97(r) and was therefore ultra vires. Consequently, the plaintiffs were not entitled to the relief claimed. Judgment was entered for the defendants with costs.