Criminal justice client rehabs can be considered being a considerably better option than incarceration or heavy fines for those who have been convicted of any sort of drug or alcohol related crime. For instance, someone who has been in prison for driving under the influence of alcohol or drugs may be eligible for rehabilitation services because of their problem as an alternative to serving time in jail. The judge could even order that the individual receive treatment, either alone or together with other sentencing. Very first time offenders in particular will often be given the opportunity to pick a criminal justice client rehab as opposed to other sentencing, and it is well-advised that they make the most of it when it is an option. The theory behind criminal justice client rehabs is that it is far more efficient and effective to invest time and energy into rehab than enforcement of other consequences. Much research has been carried out to find out how effective this strategy is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following treatment. All indicators seem to be quite positive, and criminal justice clients that take part in rehab have a much better potential for remaining out of the system after treatment.