I am extremely grateful to the hon. Lady, and we of course echo her condolences to the grieving family. She is absolutely right that probation needs to be part of the answer. We have talked about imprisonment, but effective probation can steer children and young people away from criminality. I am in discussion with my ministerial counterparts in the MOJ about that, but we need to ensure that the criminal justice system is able to respond quickly and robustly to those who take the very bad decision to carry a knife or, indeed, to use one.