Under existing law, the public must limit themselves to "reasonable force". The Tory Bill, which had its first reading in the Commons today, would change this to allow all but "grossly disproportionate force". Mr Clarke said the month- long government review had concluded the current law was "sound". He said new guidance would be issued to police and the public explaining that householders can use force, though strictly only in self-defence and not against a fleeing criminal.