I am very grateful to the noble Lord for raising that point. Of course, one supports everything that could be done by people on the ground, and there are all sorts of things that could be done. I was trying to get across the fact that I was approached by the police to use my authority, as the senior judge in Scotland, to make the announcement that I did on television in the terms in which I made it.
There is a choice as to whether one trusts the energy and resources of those on the ground to carry the message across, coupled with such statements as the judiciary can make, or whether one has to resort to statute. The point that I am making is that deterrence is crucial in this field and that the more one can deter the carrying of knives and thereby the incidents that follow from the carrying of knives, the better.