A commissar is a government official who has the responsibility for enforcing rules or policies, especially in the military or the police. Full definition
The first was General Tian Xiusi, a former political commissar of the People's Liberation Army Air Force and a member of the party's elite Central Committee. (businessinsider.com)
He met Armando Guebuza, the national political commissar of the Mozambique Liberation Front (FRELIMO) and the man who would become president of that African nation. (educationnext.org)
As it happens, the same hostility can actually be ascribed to all the plastic arts, as Alain Besançon demonstrates in his remarkable history of iconoclasm, a history he traces from Moses and the pre «Socratic philosophers down to the Soviet commissars of art. (firstthings.com)