Treating persons who are addicted to drugs or alcohol and have landed somewhere in the criminal justice system has proven a productive method of preventing repeat drug related offenses those offenders that do become rehabilitated. For criminal justice clients in Harvard that do partake in drug rehabilitation programs, even if not of their own choice as is often ordered by the judge, these clients have a much better opportunity of addressing the root of the problem so that they can stay abstinent and away from the streets drug related criminal activity. The costs to the criminal justice system related to these drug related crimes is also impacted beneficially when criminal justice clients turn out to be rehabbed in drug and alcohol treatment facilities in Harvard in lieu of jail time or other harsh punishment.