TY  JOUR
TI  The proportion between covert investigative actions and operative-search activities
KW  operative-search activity
KW  covert search operations
KW  covert investigations
KW  operational purchasing
JO  Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia
AU  Karl, A.M.
PY  2019
IS  2019
PB  SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION