Police cars are usually very visible in our society, advertising the important role of police and much loved by children. The role of the police is to enforce the law, to ensure the safety, health, and possessions of citizens, and to prevent crime and civil disorder. Law enforcement is as old as human society and the giving of laws itself. In ancient China, Babylon and Egypt there were special law enforcement bodies. The authors have made a similar book on American police cars and the styles are quite different between the two countries. We hope you will enjoy our selection of photos.