Ключевые слова: amsterdam, assist, citizen, city, constable, control, cop, crime, criminal, crowd, duty, emergency, enforcement, europa, guard, guardian, help, holland, justice, law, man, megalopolis, metropolitan, netherlands, officer, order, patrol, pedestrians, people, police, policeman, profession, protect, protection, public, safety, security, serve, street, town, traffic, uniform, urban, urban scene, working,