Criminal justice client rehabs are available as being a far better option than time in jail or significant fines for those who have been convicted of any sort of drug or alcohol related crime. By way of example, a person who has been in prison for driving under the influence of alcohol or drugs may be eligible to obtain rehab services for their problem instead of serving time in jail. The judge could even order the individual receive rehabilitation, either alone or along with other consequences. First time offenders specifically will often be given the opportunity select a criminal justice client rehab as an alternative to other sentencing, and it is well-advised they benefit from it when it is an alternative. The theory behind criminal justice client rehabs is that it is far more effective and efficient to invest time and effort into rehabilitation than enforcement of other consequences. Much research has been done to observe how effective this process 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 take part in rehabilitation have better potential for remaining out of the system following rehabilitation.