00732naa#a2200193#i#450# EN\FGKOU VO SPBU MVD ROSSII\bibl\30972 20240504043325.6 2071-8284 20191015b2019####ek#y0engy0150####ca RUS RU The proportion between covert investigative actions and operative-search activities Journal article St. Petersburg SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION 2019 7 с. Journal article local Право. Юридические науки. 34 RUS Криминалистика. 10.85 grnti Karl Ardak Maratovich vestnikspbmvd.ru