= commissary, n.1 (in various senses).

In Imperial Russia: (originally) an official appointed to receive and take care of foreign ambassadors; (later) a commissioner, police commander…

A chief officer of police for a city or town in India; a native town magistrate.

The chief police official of certain states, districts, or former colonies in North America, the West Indies, etc.

In French contexts: a rank of police officer; (now, in the French National Police) an officer in charge of the police force of a commune (commune, n.1…

a superintendent or chief of police, esp. in Russia.

the head officer of a police station in India; formerly the commander of a military post.

In Italy: a commissary of police; = Questore, n.

A chief of police in a rural district in Tsarist Russia.