TY JOUR TI THE SUBJECT OF INTERROGATION OF WITNESSES IN THE INVESTIGATION OF THE ILLICIT SALE OF SYNTHETIC NARCOTIC DRUGS COMMITTED WITH THE USE OF ONLINE STORES KW interrogation KW witness KW illegal sale KW narcotic drugs KW online store KW tactics JO Forensics: yesterday, today, tomorrow AU Zemtsova, S.I. PY 2018 IS PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation