TY JOUR TI The significance of data on a perpetrator of a crime for determining the system and choice of criminal liability measures KW a person who committed a crime KW criminal responsibility KW measures of criminal responsibility KW differentiation of criminal responsibility KW measures of a criminal law nature KW punishment KW exemption from punishment JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Kufleva, V.N. PY 2025 IS 2025 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION