Municipal police, city police, or local police are law enforcement agencies that are under the control of local government. This includes the municipal government, where it is the smallest administrative subdivision. They receive funding from the city budget, and may have fewer legal powers than the "state paid" police. These police forces usually report to a mayor or a local police board.

Watchmen were organised groups of men, usually authorised by a state, government, city, or society, to deter criminal activity and provide law enforcement as well as traditionally perform the services of public safety, fire watch, crime prevention, crime detection, and recovery of stolen goods. Watchmen have existed since earliest recorded times in various guises throughout the world and were generally succeeded by the emergence of formally organised professional policing.