A PhD project, investigating alcohol and other drug (AoD) use among men entering prison and behavioural treatment for AoD while in prison. The project consists of three studies: 1) A systematic review of the literature to identify and report on prison based AoD treatment research, 2) An analysis of existing data on AoD use prior to prison by inmates in NSW and, 3) A study of an AoD treatment program in a NSW prison. Both Aboriginal and non-Aboriginal experiences of AoD treatment will be reported together and comparatively. This project represents new knowledge as much of the current research is focused on diversion from prisons or reintegration after released from prison. The PhD is by publication with a minimum of four papers to be written and submitted to suitable peer reviewed journals.