Criminal justice client rehabs are available as a significantly better option than incarceration or heavy fines for those who have already been convicted of any kind of drug or alcohol related crime. For example, somebody who has been in prison for driving under the influence of alcohol or drugs may qualify to obtain treatment services for problem instead of serving time in jail. The judge might order that the individual receive rehab, either alone or together with other consequences. First-time offenders in particular tend to be given the ability to choose a criminal justice client rehab instead of other sentencing, and it is well-advised that they make the most of it if it's an option. The theory behind criminal justice client rehabs is it is far more efficient and effective to invest time and energy into treatment than enforcement of other consequences. Much research has been done to see how effective this strategy is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. All indicators appear to be quite positive, and criminal justice clients who do take part in rehabilitation have a much better potential for remaining out of the system after rehabilitation.