My Lords, building on the points that my noble friends have made, I wonder whether it is time to ask whether the guidance to prosecutors is really sufficient in this area. As the noble Lord, Lord Hogan-Howe, said, in 2013 householders were given a special defence when they use force in the home where they honestly believe that the degree of force used is reasonable. Is it not time to ask whether police officers should be given some similar legal protection, perhaps with a new offence of excessive force rather than murder, and a more proportionate penalty, appropriate for police officers who put their lives at risk to protect us all?