A charge of drink driving will be made on the basis of results from an evidential breath test or from laboratory analysis of a specimen of blood or urine. We have taken steps to speed up this process by empowering the police to carry out evidential tests at the roadside rather than at a police station. Work is currently under way to enable suitable evidential equipment to be type approved for use by the police. Decisions as to prosecution and the subsequent timetabling of cases are matters for the Crown Prosecution Service and HM Courts Service.