Russian Federal Drug Law Enforcement Agencies

"Four federal agencies in Russia conduct investigations of drug trafficking: FSKN, the Ministry of Internal Affairs (MVD), the Federal Security Service (FSB) and the Federal Customs Service (FTS). The FSKN is the primary drug enforcement agency and has an authorized staffing level of 40,000 employees, with branch offices in every region of Russia."

Source: 

United States Department of State Bureau for International Narcotics and Law Enforcement Affairs, "International Narcotics Control Strategy Report: Volume I: Drug and Chemical Control," State Dept: Washington, DC, March 2012.