The plans would mean individuals in families with a history of violence could be under suspicion. Paul Cavadino, chief executive of crime reduction charity Nacro, criticised the plans: "Children who become violent often have a history of family violence. But not all children of violent families become violent themselves. The police would end up with large amounts of information and I cannot see that they could do anything sensible with it." A Home Office spokeswoman said: "The Home Office has its...