TY JOUR TI Content-legal analysis of the concept of «publicity» in operational investigative activities KW Operational investigative activities KW private theory of secrecy KW secrecy in operational investigative activities KW ensuring secrecy KW the institution of secrecy KW conspiracy KW making public KW disclosure of information. JO Bulletin of the Kaliningrad branch of the Saint-Petersburg University of the Ministry of Internal Affairs of Russia AU Tambovtsev, A.I. PY 2025 IS 0 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION