TY JOUR TI TO THE ISSUE OF LAW ENFORCEMENT IN OPERATIONAL-INVESTIGATIVE ACTIVITIES KW law enforcement KW investigative activities KW confidentiality KW enforcement of the right JO Vestnik of the East Siberian institute of the Ministry of internal affairs of the Russian Federation AU Desyatov, M.S. PY 2017 IS PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation