This report summarizes data gathered from the 64 graduates of the Yuma County Drug Court from 1998 to 2001. Those who agreed to participate were interviewed at 3, 6, 12 and/or 18 months after graduation. Instruments used included the Addiction Severity Index, the CSAT GPRA Client Outcomes Measure for Discretionary Programs and a questionnaire developed to assess how well relapse prevention plans were followed. Rather than increased ELAPSED time from treatment, the variables that appeared to predict relapse were family problems, lack of social support and employment difficulty. ASI severity scales did not differ significantly over time for those studied, but the instrument did appear to be a useful tool in predicting relapse. The majority of graduates studied were able to successfully carry out their relapse prevention plans and graduation plans. Criminal involvement after graduation appeared to be significantly less than that of offenders who have not been treated in a drug court model and, for those who did recidivate, time to first arrest appeared to be longer for graduates than for non-graduates. (Contains 2 tables.)