TY JOUR TI The role of doctrine in criminal procedure regulation KW legal doctrine KW scientific legal doctrine KW official documents of doctrinal nature KW criminal procedure regulation KW material source of criminal procedure law KW formal-legal source of criminal procedure law JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Prohorova, E.A. PY 2024 IS 2024 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION