Criminal justice client rehabs are available as a significantly 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 example, someone who has been in prison for driving under the influence of alcohol or drugs may be eligible for rehab services for his or her problem instead of serving time in jail. The judge may even order the individual receive rehabilitation, either alone or along with other consequences. First time offenders in particular are often given the opportunity to select a criminal justice client rehab as opposed to other sentencing, and it is highly recommended that they benefit from it if it is a choice. The theory behind criminal justice client rehabs is that it is way more effective and efficient to invest commitment into treatment than enforcement of other consequences. Much research has been completed to observe how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. The signs and indicators seem quite positive, and criminal justice clients that do experience treatment have a better possibility of remaining out of the system after treatment.