[The illicit drug market in Aarhus. I. Supply].

Drugs (n = 2240) seized on the illicit drug market in the Aarhus Police District during the period 1.1.1992-31.12.1993 are described with regard to weight, identity, purity and distribution. This article dealing with drugs together with the article dealing with the "actors" are reviews of results published in book form (English summary) (1). Two thirds of the samples were cannabis, mainly hash. Medical prescription drugs, mainly benzodiazepines, constituted 11% of the samples. Amphetamine was found in 9% of the samples and heroin in 8%. Cocaine and other euphoriants were each found in less than 1% of the samples. The purity of all types of drugs varied greatly during the study period, good and poor quality drugs being available on the market at the same time. No difference was found between the purity of drugs in user packages and that of drugs in large packages. Most batches were on the market only for a brief period of time. It is concluded that it is difficult for users to obtain the same quality of a substance each time.