Abstract: The object of this research is the organization of security of Taurida Governorate during the difficult time of severe military and political crises. The subject of this research is the nonprofit organizations of city self-defense created by the local self-governing bodies, as well as the professional unions in the Crimean territory at the time Civil War in Russia, during the “first” and “second” Crimean Regional Governments. The author meticulously examines such aspect of the topic as the organization of the pubic security and self-defense bodies in the various Crimean cities under the conditions of heavy German and domestic censorship existing on the Peninsula. Special attention is given to the history of creation of the Flying (Reserved) Squad, which later became a part of the Simferopol City Police and partially Simferopol City Guard of the Ministry of Internal Affairs. Using the method of source analysis, the author carefully processes information from the previously undiscovered materials from the State Archive of the Republic of Crimea, as well as recollections of eyewitnesses of the events and periodicals of revolutionary time. The scientific novelty consists in the fact that for the first time, based on the extensive biographical material, the author was able to determine the peculiarities of organization and activity of subdivisions as a phenomenon in the history of security forces of the Crimean Regional Government and Armed Forced of the South of Russia. The author believes that the creation of city self-defense organizations allowed consolidating professional and semi-professional servicemen into the single militarized structures, as well as shifted the expenses for police operations from the government onto the local self-governing bodies and population.