Parole supervision aims to balance public safety and rehabilitation of parolees. The author's study analyzed recidivism rates of prisoners released in 1994 to parole supervision versus unconditional release. Those under supervision had higher rearrest rates, though supervision may benefit some groups more. The study was limited by being unable to assess which supervision strategies are most effective. As parole practices vary significantly between states, more research is needed on effective approaches. Overall, the study raises important questions about whether parole supervision achieves its goals of reducing recidivism and changing lives for the better.