If I may say so to the noble Baroness, I think this is just a drafting point. The extent may well be nil. There is no particular reason to
suppose that the retained EU case law in a particular case is restricting the proper development of domestic law. That was the situation, as it turned out, in the Warner music case, although at least one learned justice in that case very pointedly left open the possibility of further developments in a fast-moving technology.