Does my hon. Friend accept that most of us agree that there is no need for random breath tests, because the police have enough powers already? Does he also agree, however, that many of us who are with him on that issue are rather disturbed at the idea of carrying out tests on drivers who will then escape prosecution? We all know already that drinking and driving is dangerous. Why should there be any need to go in for more tests, when we all know the results before we start?