Unit 4: The law.

For most people the police are the face of the law. They can arrest people in the street, but they also give information.

Suspects can be kept in the cells at the police station for several hours. Next they take fingerprints to check the person's identity. They also take mouth swabs for analysis of DNA. Next day suspects went to court. Here three magistrates listen to evidence from the police and witnesses. They then decide if the person is guilty or not guilty.

The evidence that the police collect from a crime scene is analysed in laboratories like this. Scientists examine and analyse material from the crime scene to find out exactly what happened.
The police are the most obvious part of the law in Britain. Their job is to make sure that people don't break the law and to catch then when they do.