Illicitly Imported Heroin Products (1984 to 1989): Some Physical and Chemical Features Indicative of Their Origin

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Abstract
Samples taken from seizures of imported illicit heroin preparations of known geographical origin have been examined. The typology developed in two previous surveys of illicit heroin products is applicable to many of the samples studied in this work, although significant changes have occurred in the chemical profile of illicit heroin products from certain geographical regions. It remains possible, however, to give an opinion as to the origin of many samples of illicit heroin of unknown provenance. The observation in the previous surveys that unrelated samples of illicit heroin possess unique chemical profiles has been confirmed by the present results.