What then was the nature of the appellant's claimed right at the time part of the definition of industrial dispute was repealed and the new definition substituted? It is inappropriate to describe that right merely as a right to a hearing before a Commissioner. That right, conferred by the Act, s29(1) remained unaffected by the repeal of part of the definition of industrial dispute. The appellant exercised the right conferred by s29(1) five days after the repeal. The President convened a hearing in consequence of the exercise of that right. Any person referred to in the Act, s29(1) was, and still is, entitled to apply to the President in respect of an alleged industrial dispute. The critical right which the appellant claims accrued to her was the right to relief, which the Commissioner, in the exercise of his discretion, could grant to settle or prevent an industrial dispute. It seems to me that until the appellant applied to the President in accordance with the Act, s29(1), it could not be said that she accrued any relevant right at all. The following oft cited passage is taken from the advice to Her Majesty in Abbott v The Minister for Lands [1895] AC 425 at 431: