Criminal justice client rehabs are available as a considerably better option than time in jail or heavy fines for those who have been convicted of any sort of alcohol or drug related crime. For instance, a person who has been in prison for driving under the influence of drugs or alcohol may be eligible to obtain rehabilitation services for their problem as opposed to serving time in prison. The judge could even order the individual receive rehab, either alone or along with other consequences. New offenders specifically are often given the ability to choose a criminal justice client rehab rather than other sentencing, and it is highly recommended they reap the benefits of it when it is an alternative. The theory behind criminal justice client rehabs is that it is much more efficient and effective to invest time and energy into rehabilitation than enforcement of other consequences. Much research has been carried out to find out how effective this approach is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. All indicators seem quite positive, and criminal justice clients who experience rehabilitation have a better possibility of remaining out of the system after treatment.