while I agree utterly that someone obstructing an ambulance, that is en route to a call with blue lights and sirens, needs to be stopped by the police and have the error of their ways explained and any bit of book that can be thrown at them, thrown... you've got to worry about a system where a twat in a car with this situation gets the weight of the Law, but the twat who is junked up and punches you and breaks your glasses gets off utterly scot free.