TY JOUR TI About some rules of an assessment of admissibility of proofs in criminal proceedings KW criminal proceedings KW investigator KW judge KW evidence KW admissibility of evidence KW proof JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Pyashin, S.A. PY 2020 IS 2020 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION