High Quality Content by WIKIPEDIA articles! Law enforcement in France is conducted at the national and municipal level, and is the responsibility of a variety of law enforcement agencies. Three agencies operate at the national level, and at the local level each commune is able to maintain their own municipal police. Paris does not have its own police municipale and that the Police Nationale provides these services directly as a subdivision of France`s Ministry of the Interior. Only certain, designated police officers have the power to conduct criminal investigations, and such investigations are supervised by investigative magistrates.