00747naa#a2200181#i#4500001003900000005001700039011001400056100004100070101000800111102000700119200013900126210011600265215001000381608002700391675009300418700003300511856002100544EN\FGKOU VO SPBU MVD ROSSII\bibl\9466820250627170819.5##a2071-8284##a20250626b2025####ek#y0engy0150####ca0#aRUS##aRU1#aThe problem of defining and interpreting the concept of ‘secret protection’ in operative-investigative activitieseJournal article1#aSt. PetersburgcSAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATIONd2025##a6 с.##aJournal article2local##aУголовный розыск. Криминальная полиция. 351.745.7zRUS#1aTambovtsevgAndrei Ivanovich4#avestnikspbmvd.ru