%0 Journal Article %T NARCOTIC DRUGS OF THE FENTANYL GROUP AND THE PROBLEMS OF THEIR FORENSIC INVESTIGATION %A Kharchenko, I.V. %A Geraskin, M.Y. %A Gladyrev, V.V. %K FENTANYL, 3-METHYLFENTANYL, RESEARCH OF NARCOTIC DRUGS, SYNTHETIC ANALGESICS, CHROMATOGRAPHIC METHODS %J FORENSIC EXAMINATION %D 2024 %N 0 %P 9 %I Volgograd Academy of the Ministry of Internal Affairs of Russia