41. In part, the defendants' submissions were in answer to claims to relief made on behalf of the plaintiff and which went far beyond such declarations as I have foreshadowed. To the extent, however, that they are put as a ground for denying her any right to such declarations they must, I think, be rejected. Her direct personal interest in due compliance by the Director-General with the requirements of s. 107 (c) is clear; upon it depends her eligibility for, and her prospect of obtaining of, unemployment benefits. She has what Megarry J. found wanting in Thorne Rural District Council v. Bunting, (1972) Ch 470, at p 477, a substantial interest recognized by the law; and if in fact she lacks a cause of action in the strict sense of that term that will not debar her from declaratory relief - Rediffusion (Hong Kong) Ltd. v. Attorney-General (Hong Kong), (1970) AC 1136, at p 1167. The power to give declaratory relief is, as Viscount Radcliffe observed in Ibeneweka v. Egbuna, (1964) 1 WLR 219 at p 224, conferred in wide and general terms, it is not excluded by the availability of an alternative remedy by way of certiorari - Pyx Granite Co. Ltd. v. Ministry of Housing and Local Government, (1960) AC 260, per Lord Goddard at p 290 - and no different considerations should apply when mandamus might lie - see generally Zamir, The Declaratory Judgment (1962), at p 98 et seq. and De Smith, Judicial Review of Administrative Action, 3rd ed., 1973, pp 442, 465 and 490 et seq. In Forster v. Jododex Australia Pty. Ltd. (1972), 127 CLR 421, Gibbs J., with whom, in this respect, all other members of the Court agreed, examined in detail the extent of the jurisdiction to grant declaratory relief. What his Honour there said, including his reference to and his distinguishing of Toowoomba Foundry Pty. Ltd. v. The Commonwealth (1945) 71 CLR 545, I would regard as applicable to the present case. (at p469)