Criminal justice client rehabs are available like a significantly better option than jail time or significant fines for many who have already been convicted of any kind of drug or alcohol related crime. As an example, someone who has been in prison for driving while impaired of alcohol or drugs may qualify for rehabilitation services for his or her problem instead of serving time in jail. The judge might even order that the individual receive rehab, either alone or in addition to other sentencing. Very first time offenders specifically are often given the opportunity to pick a criminal justice client rehab as opposed to other sentencing, and it is highly recommended they make the most of it if it is a choice. The theory behind criminal justice client rehabs is it is far more efficient and effective to invest effort and time into rehabilitation than enforcement of other consequences. Much research has been completed to see how effective this approach is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following treatment. The signs and indicators seem quite positive, and criminal justice clients that do experience treatment have better chance of remaining out of the system after rehabilitation.