THE PURPOSE OF THIS PROJECT WAS TO STUDY THE EFFECTS OF EXTENSIVE PROBATION SERVICES ADMINISTERED IN THE COMMUNITY AS COMPARED TO REGULAR PROBATION AND INSTITUTIONAL TREATMENT IN REDUCING THE RATE OF RECIDIVISM AMONG SECOND FELONY OFFENDERS FOR THE OAKLAND COUNTY OFFENDER POPULATION. THE STUDY COMPARES THE TREATMENT IN THE COMMUNITY TREATMENT PROJECT IN OAKLAND COUNTY TO A CONTROL GROUP OF SECOND FELONY OFFENDERS RECEIVING PROBATION THROUGH THE OAKLAND COUNTY PROBATION DEPARTMENT, AND TO A SECOND CONTROL GROUP INSTITUTIONALIZED AT JACKSON STATE PRISON. THE COMPARISON FOCUSED ON RATES OF RECIDIVISM AND THE OFFENDERS' CHANGE OF STATUS IN SOCIETY AFTER TREATMENT. THE HYPOTHESIS TO BE TESTED WAS AS FOLLOWS: RANDOMLY SELECTED SECOND FELONY OFFENDERS WHO WOULD NORMALLY BE INSTITUTIONALIZED WILL HAVE A SIGNIFICANTLY LOWER RATE OF RECIDIVISM AND A SIGNIFICANTLY HIGHER LEVEL OF ADJUSTMENT TO THE COMMUNITY WHEN ASSIGNED TO PROJECT PROBATION THAN A CONTROL GROUP OF INSTITUTIONALIZED OFFENDERS; THOSE RANDOMLY SELECTED SECOND FELONY OFFENDERS WHO NORMALLY WOULD RECEIVE REGULAR PROBATION WILL HAVE A SIGNIFICANTLY HIGHER LEVEL OF ADJUSTMENT TO THE COMMUNITY WHEN ASSIGNED TO THE PROJECT THAN A CONTROL GROUP OF OFFENDERS RECEIVING REGULAR PROBATION. THE RESULTS CLEARLY SUPPORTED THE HYPOTHESIS. EXTENSIVE PROBATION SERVICES REDUCED THE RATE OF RECIDIVISM IN COMPARISON WITH BOTH THOSE OFFENDERS INSTITUTIONALIZED AND THOSE ON REGULAR PROBATION. NOTES, A BIBLIOGRAPHY, AND SUPPORTING MATERIALS ARE APPENDED.