Criminal justice client rehabs are available as a significantly better option than incarceration or heavy fines for many who have already been convicted of any sort of drug or alcohol related crime. For example, somebody who has been in prison for driving under the influence of alcohol or drugs may be eligible to receive rehab services for his or her problem instead of serving time in prison. The judge might even order that the individual receive rehabilitation, either alone or in addition to other sentencing. First-time offenders specifically will often be given the opportunity choose a criminal justice client rehab as opposed to other sentencing, and it is highly recommended they benefit from it if it is an alternative. The idea behind criminal justice client rehabs is it is far more effective and efficient to invest effort and time into rehabilitation than enforcement of other consequences. Much research has been completed to observe how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following treatment. The signs and indicators appear to be quite positive, and criminal justice clients who do experience rehabilitation have a much better potential for remaining out of the judicial system after treatment.