TY JOUR TI TASKS OF OPERATIONAL INVESTIGATIVE ACTIVITIES IN CORRECTIONAL INSTITUTIONS: SYSTEM-LEGAL ANALYSIS AND RESEARCH PROBLEMS KW security KW prohibited items KW malicious violation KW disclosure of impending crimes KW search for convicts KW penal system JO Penal law AU Teplyashin, P.V. PY 2025 IS 20 PB Academy of the FPS of Russia