Effective punishment should be accompanied by positive reinforcement of desirable behavior and should treat offenders like reasonable human beings. In this context, alternative sanctions (such as community service), family interventions, and therapeutic interventions directly related to the crime are especially beneficial. Certainty and celerity of punishment as well as consistent application of disciplinary measures can also modify criminal behavior significantly. In the execution of sentences, the probation phase is essential because it rewards well adjusted behavior and offers personal attention and support through a probation officer. Future research should determine whether continuing this contact beyond the probation period would reduce recidivism. According to psychological research, the initial level of punishment should not be too low; thus, a mild sentence for first-time offender works better than dismissing the charge entirely. Especially for juveniles, a mild, quick punishment is most effective. Therefore, the study advocates maintaining a separate, mild but rapid criminal justice system for juvenile delinquents. 31 pages of references