Factors related to successful completion of a first offender diversion program were examined from initial data of a longitudinal study of drug treatment court outcomes in Delaware. The strongest predictors of success were factors associated with social stakeholder values, especially those involving employment. Other factors associated with program completion included race, education, and frequency of drug use. While the overall success of drug treatment courts continues to be documented, these data suggest success varies with individual characteristics. The continuing study will explore whether these characteristics are also related to subsequent outcomes, especially drug use relapse and criminal recidivism, over a 24-month post-treatment period.