Between 1969 and 1978, 76 percent of juvenile offenders were able to complete their probation. In fact, probation appears to be the most successful form of treatment for juveniles. In general, courts select adult offenders between age 16 and 21 for probation; they account for 90 percent of the total adult offenders on probation and successfully complete probation about 78 percent of the time. While aftercare officers supervise paroles, volunteer citizens are recruited to help the Community Probation Service for probationers and parolees. Prison Welfare Services supervises (1) reformative trainees, young offenders between 16 and 21 committed to reformative training instead of imprisonment; (2) corrective trainees, young habitual offenders above age 18, who can be released for supervised training after serving two-thirds of their sentence; (3) preventive detainees, habitual offenders above age 30 who can also be released after serving two-thirds of their sentence; and (4) convicted prisoners presently not covered by legislation for supervision. The Prison Welfare Service's individualized rehabilitation programs in prison and after discharge are supplemented by the Singapore Aftercare Association which runs a hostel, aides in employment, and provides cash grants and loans for discharged prisoners and their families. Tabular data are provided.