Criminal justice client rehabs can be considered as a significantly better option than incarceration or heavy fines for individuals who have already been convicted of any kind of drug or alcohol related crime. For instance, a person who has been in prison for driving drunk of alcohol or drugs may be eligible for rehab services for his or her problem as opposed to serving time in prison. The judge could even order that the individual receive rehab, either alone or together with other consequences. First time offenders in particular will often be given the opportunity to select a criminal justice client rehab as an alternative to other sentencing, and it is highly recommended that they make the most of it if it is a choice. The theory behind criminal justice client rehabs is that it is much more efficient and effective to invest time and effort into treatment than enforcement of other consequences. Much research has been carried out to find out how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehabilitation. All indicators seem to be quite positive, and criminal justice clients that experience rehabilitation have a much better chance of remaining out of the judicial system after rehabilitation.