The Special Corps of Gendarmes (Russian: Отдельный корпус жандармов) was the uniformed security police of the Russian Empire in the 19th and early 20th centuries. Its main responsibilities were law enforcement and state security.
The responsibilities of the Gendarmes also included the execution of court orders, pursuit of fugitives, riot control, and detainment of "unusual" criminals. Gendarmes could also be assigned to assist local police and officials.
The precursors of the Corps were the Army Gendarmerie regiment, created in 1815 and based on the Borisoglebsk Dragoon Regiment, and Gendarmerie units of the Special Corps of the Internal Guards (raised 1811). Following the 1825 revolt, the new tsar, Nicholas I, created the office of the Chief of Gendarmes in July 1826 and appointed General Count Alexander Benkendorf to it; all of the Gendarmes were subordinate to the Chief. Benkendorf was also appointed Executive Director of the newly created Third Section of the Imperial Chancellery, although the office of the Head of the Third Section was not formally merged with Chief of Gendarmes until 1839.
In 1836, the Gendarmerie of the Internal Guards was transformed into the Special Corps of Gendarmes, under the Chief of Gendarmes. The Commander of the Corps and Chief of Staff of the Corps were also Directors of the Third Section under the Executive Director. The Corps was divided into seven territorial Districts, six of them located in Russia and one in the Kingdom of Poland, each having a Directorate. The Main Directorate, along with additional Gubernial Directorates, was also created. The Army's Gendarmerie regiment joined the Corps in 1842.