00607naa#a2200169#i#450# EN\FGKOU VO SPBU MVD ROSSII\bibl\103956 20251016232637.4 2227-7226 20251011b2025####ek#y0engy0150####ca RU Pre-state history of operational investigative activities Journal article St. Petersburg SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION 2025 8 с. Journal article local Melikhov Aleksandr Ivanovich Kapitanec Yuliya Vladimirovna vestnikkf.ru