This study proposes the first rigorous examination of a novel continuity of care model (called CCDAT) that extends from detention through probation. The project will assess the effectiveness of the CCDAT program in promoting detainee recovery and its impact on recidivism, by examining the level and type of substance misuse and the psychological and social functioning of 20 CCDAT participants and matched 20 detainees who declined to participate in CCDAT; and by measuring, at the start of detention, detention release, and six months later, any changes that have occurred with respect to these variables. Semi-structured interviews will also be conducted with the therapist, jailors, and care coordinators in order to garner further insights into the functioning and efficacy of the CCDAT program. The project will also develop two multivariate, recurrent event survival models of parolees’ release/re-arrest intervals linked to the treatment data. We will then perform a simple financial analysis of the CCDAT program, using these models and then comparing relative costs of detention and treatment, community safety, and social service usage for treated and non-treated offenders.