TY JOUR TI «Cases of urgency» in criminal procedure law and law enforcement practice KW urgent cases KW investigative measures KW procedure measures KW legal discretion of investigator KW inner conviction JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Alekseeva, E.S. PY 2019 IS 2019 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION