SPECIAL case stated for the opinion of the Full Court.
An action was brought in the High Court by the Common- wealth and the Postmaster-General of the Commonwealth against The Progress Advertising and Press Agency Co. Proprietary Ltd., the claim endorsed on the writ being :-
(1) For a declaration that the Commonwealth or the Post- master-General has the sole right of printing, publishing and circulating in Australia all lists of subscribers connected with any telephone exchange.
(2) For a declaration that Regulation 126A of the Telephone Regulations (Statutory Rules 1908, No. 87) is valid and intra vires,
(3) For an injunction restraining the defendants, their servants and agents, and each and every of them from printing, publishing or circulating, or authorizing the printing, publishing or circulat- ing of, any lists of subscribers connected with any telephone exchange in Australia or any advertising or other telephone directory.
(4) For such other relief or remedy as may be just. Regulation 126A of the Telephone Regulations referred to above is as follows:-
"(1) Any person who, without the authority of the Postmaster- General, or of the Deputy-Postmaster-General of the State, prints, publishes, or circulates, or authorizes the printing, publishing, or circulating of, any list of all or any of the subscribers connected with any Telephone Exchange shall be guilty of an offence, and shall be liable to a penalty not exceeding Ten pounds.
"(2) All lists published in contravention of this Regulation shall be forfeited to the Postmaster-General, and shall on demand, in writing, be delivered up to him."
The parties by consent stated a special case setting out certain facts, which are sufficiently stated in the judgments hereunder, and asking the opinion of the High Court on the question whether on the facts the plaintiffs had a good cause of action against the defendants, and were entitled to the relief or any of it claimed in the writ.
McArthur, for the plaintiffs, Regulation 126A is authorized by