TY JOUR TI Problems of seizing objects, documents and materials in carrying out open operative-search activities KW operative-search legislation KW protocol of seizure of objects KW documents and materials KW open operative-search activities KW criminal procedural legislation KW protocol of investigative action JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Suprun, S.V. PY 2025 IS 2025 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION