Breathalyser Tests Mr. Rose asked the Secretary of State for the Environment whether he will initiate a study of the effect of the law relating to the breathalyser on the incidence of cases of failing to stop after accidents involving injury to the person or damage to other motor vehicles with a view to reducing the incidence of such conduct. Mr. Horam I have been asked to reply. No. We do not think such a study would provide information that would help to reduce the incidence of failing to stop after an accident.