TY JOUR TI EST PURCHASE OF DRUGS IN THE LIGHT OF THE DECISION OF EUROPEAN COURT OF HUMAN RIGHTS - AN EFFECTIVE MECHANISM TO UNCOVER DRUG TRAFFICKERS OR POLICE PROVOCATION? KW European Court of Human Rights KW buy-and-bust operation KW provocation JO Vestnik of the East Siberian institute of the Ministry of internal affairs of the Russian Federation AU Pomelov, A.A. PY 2015 IS PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation