This paper presented an assessment of a groupwork programme, carried out by the Probation and Welfare Service with HIV-positive drug misusers in prison. The programme was designed to introduce ideas and information aimed at promoting desired behavioural changes in terms of risk behaviour and drug addiction. The researcher found a positive response among group members, and contended that this, combined with analysis of the results, suggested that the programme's approach was an encouraging step in devising an acceptable and relevant strategy to deal with this client group. This was a positive assessment, as this group was previously found to be unresponsive to traditional treatment methods.