TY JOUR TI GENERAL SITUATION OF INTERROGATION IN THE INVESTIGATION OF CRIMES RELATED TO THE ORGANIZATION OF EXTREMIST ACTIVITY KW crimes of an extremist KW extremism KW extremist activity KW extremist organization KW extremist formation KW organization KW crimes KW motives KW hatred and enmity KW social groups KW interrogation KW testimony KW investigative action JO Vestnik of the East Siberian institute of the Ministry of internal affairs of the Russian Federation AU Vystropov, V.G. PY 2017 IS PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation