the Entertainments Tax Assessment Act 1916),-and to the fact that
that Act provides no method of appeal (see Smeeton v. Attorney- General (1) ). Reg. 29 of the Entertainments Tax Regulations 1917 is clearly in derogation of the common law rights which the plaintiff claims to exercise. This case is on all fours with Automatic Totali- sators Ltd. v. Federal Commissioner of Taxation (2). [Counsel also referred to Barwick v. South-Eastern and Chatham Railway Cos. (3).]
Sir Edward Mitchell K.C. and C. Gavan Duffy, for the defendant, did not offer any argument upon this question.
Knox C.J. In this case I do not think it is necessary to consider whether the Court has jurisdiction to make a declaration, for, even if it had, I do not think the case is one in which the application for a declaration should be entertained. The state of facts on which the claim is based is purely hypothetical-" If the company elects to carry on its business in a certain way, will it be liable to pay a certain tax ?" It has always been the rule that the Court does not answer questions based on a hypothetical state of facts. If authority were needed for that, it will be found in the case of Glasgow Naviga- tion Co. v. Iron Ore Co. (4), where Lord Loreburn L.C. stated that it was not the function of a Court of law to advise parties as to what would be their rights under a hypothetical state of facts. If this declaration were made, it would have no binding effect in the true sense at all. It would be no more than an abstract opinion in the nature of advice that, if the company did certain things, it would or would not become liable to pay a certain tax. None of the cases we have been referred to, I think, goes as far as that, and in my opinion the questions should not be answered.
ISAACS J. I agree.
HIGGINS J. In concurring with the judgment of the Court I wish to add a few words because in the previous cases on which Mr.
(I) (1920) 1 Ch., 85.
(3) (1921) 1 K.B., 187. (2) (1920) 27 C.L.R., 513.
(4) (1910) A.C., 293, at p. 294.