Criminality of heroin users presenting to an Australian hospital‐based drug and alcohol unit

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Abstract
Summary: The rates of criminality of two groups of heroin users presenting to Westmead Hospital were studied. Forty‐seven heroin users referred by a structured court diversion scheme (DACAP) were compared with 45 self‐referred heroin users. Demographic data, heroin use measures, non‐narcotic drug use, and alcohol use were collected by semi‐structured interview. Official records were used for measures of criminality. This provided a comprehensive profile of conviction and incarceration rates. Each sample was compared on the age at presentation, intensity and duration of heroin use, and presenting rates of criminality. Results demonstrated the DACAP sample was significantly less heroin involved at presentation with a marginally shorter history of use. Comparisons on criminality demonstrated no difference between samples on six measures. The DACAP group recorded significantly higher levels on two criminality measures, the reverse of what was hypothesized. It is suggested that the DACAP diversion scheme generates a distinct subpopulation of heroin users, characterized by younger age, lower education, less marital attachment, poorer employment history, earlier onset of antisocial behaviour and comparable criminality. Identifiable subpopulations of heroin users appear to be generated by the different referral sources: legal or health oriented. The utility of diverting a more criminally and socially dysfunctional group to treatment agencies is discussed.