My right hon. Friend has made a very important point. The use of body-worn cameras enables officers to use their stop-and-search powers with even greater confidence than they had before. Interestingly, the chief constable of Merseyside told us yesterday that since his officers have started using body-worn cameras, the volume of complaints about stop-and-search has decreased dramatically: I think he said that there were about seven last year. This is the point of stop-and-search. If we target it correctly and officers are stopping people when they believe that a search meets the test of being proportionate and necessary, that will not just help them to catch those who are carrying knives, but will, I hope, give confidence to communities.