With respect, Mr Staines, that's not quite the point. There may or may not be. But even if there isn't, there's a question of proof of not merely the title but the name of the journalist doing whatever he's supposed to have done. There's also an evidential issue about the acceptability of simply an entry of a name in a book as demonstrating the fact. So it's an enormous exercise. As indeed is actually happening in relation to the investigations which we heard about yesterday, Weeting, Elveden, Tuleta. These are enormous police operations.