Criminal justice client rehabs are available as a considerably better option than time in jail or heavy fines for those who have already been convicted of any type of alcohol or drug related crime. For instance, a person who has been found guilty of driving under the influence of drugs or alcohol may be eligible to receive treatment services because of their problem instead of serving time in prison. The judge might even order the individual receive rehabilitation, either alone or as well as other consequences. First-time offenders specifically will often be given the opportunity to select a criminal justice client rehab as an alternative to other sentencing, and it is highly recommended they benefit from it if it is a choice. The theory behind criminal justice client rehabs is it is far more efficient and effective to invest time and energy into rehab than punishment. Much research has been carried out to see how effective this method is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. The signs and indicators seem to be quite positive, and criminal justice clients that experience rehabilitation have better chance of remaining out of the judicial system after rehabilitation.