Key Stage 4: Public and Uniformed Services, Police Service; Citizenship, People who Help us, Crime and Punishment; Videos of police throughout the C20th; Films explore the police service, Police Officers at work and crime prevention. Useful for showing the evolution of the systems behind the police force over time and how police serve to maintain public order. Useful for information about public welfare and changes in transportation. Questions: Discuss the the pros and cons of the police service. Consider their role. Explore the police service. Analyse the role of this public service.