From midnight on 30 January it becomes law for most drivers and front-seat passengers to wear a seat belt. But who is exempt? How are the police going to administer the law? What happens if you are caught not wearing a seat belt? Answering questions from the motoring public are Jackie Stewart long-time advocate of seat belts Dr Murray Mackay, Head of the Accident Research Unit, University of Birmingham and Roger Birch, Chief Constable, Warwickshire Constabulary.