Treatment reduces criminal recidivism

Not surprising:

The 2009 Annual Report of the Office of Substance Abuse Treatment Services (OSATS), formerly the Division of Addiction and Recovery Services, includes return-to-custody data on offenders who paroled in Fiscal Year 2005-06 for a one-year and a two-year period. The return to custody rate after one year for offenders completing both in-prison and community-based treatment in FY 2005-06 was 21.9 percent compared to 39.9 percent for all offenders. The return to custody rate after two years for offenders completing both in-prison and community-based treatment in FY 2005-06 was 35.3 percent compared to 54.2 percent for all offenders.

For male offenders, the return-to-custody rate after one year for those who completed both in-prison and community-based substance abuse treatment in FY 2005-06 was 25.4 percent compared to 41.2 percent of all male offenders. The return-to-prison rate after two years for male offenders who completed both in-prison and community-based substance abuse treatment in FY 2005-06 was 40.4 percent compared to 55.6 percent of all male offenders.

Female offenders were especially responsive to substance abuse treatment. After one year, only 8.8 percent of female offenders who completed both in-prison and community-based substance abuse treatment in FY 2005-06 were returned to custody compared to 30.1 percent of all female offenders. The return-to-prison rate after two years for female offenders who completed both in-prison and community-based substance abuse treatment in FY 2005-06 was 16.5 percent compared to 43.7 percent of all female offenders.