Chief Constables are not hired to change the law. They are hired to enforce it. Mike Barton, the Durham Police chief, needs to be sharply reminded of this, THE MAIL ON SUNDAY says. Mr Barton has made something of a name for himself by saying he will no longer pursue drug users, even though they are breaking the law. Now he plans to stop arresting so-called ‘low-level’ drug dealers. There is a sort of logic in this if you see drug offenders through the eyes of a social worker. But Mr Barton is not Chief Social Worker of Durham. He is Chief Constable.