Criminal justice client rehabs can be considered being a significantly better option than prison time or heavy fines for individuals who have already been convicted of any sort of alcohol or drug related crime. As an example, a person who has been found guilty of driving under the influence of alcohol or drugs may be eligible for rehabilitation services for problem instead of serving time in prison. The judge might even order the individual receive rehabilitation, either alone or as well as other sentencing. First-time offenders in particular are often given the ability to select a criminal justice client rehab as opposed to other sentencing, and it is well-advised that they take advantage of it when it is an option. The concept behind criminal justice client rehabs is that it is far more efficient and effective to invest time and effort into treatment than enforcement of other consequences. Much research has been carried out to see how effective this strategy is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. All indicators appear to be quite positive, and criminal justice clients that do experience rehab have a better chance of remaining out of the system after rehabilitation.