TY  JOUR
TI  Pre-state history of operational investigative activities
KW  Operational investigative activities
KW  history of operational investigative activities
KW  pre-state period
KW  primitive society
KW  covert security
KW  covert surveillance
KW  informant work
JO  Bulletin of the Kaliningrad branch of the Saint-Petersburg University of the Ministry of Internal Affairs of Russia
AU  Melikhov, A.I.
AU  Kapitanec, Y.V.
PY  2025
IS  0
PB  SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION