Criminal justice client rehabs are available being a significantly better option than prison time or significant fines for many who have already been convicted of any type of alcohol or drug related crime. For example, someone who has been in prison for driving under the influence of drugs or alcohol may qualify to get treatment services for their problem instead of serving time in prison. The judge may even order the individual receive rehabilitation, either alone or as well as other sentencing. Very first time offenders in particular in many cases are given the opportunity to select a criminal justice client rehab as an alternative to other sentencing, and it is well-advised that they make the most of it if it is a possibility. The theory behind criminal justice client rehabs is it is far more efficient and effective to invest commitment into rehabilitation than punishment. Much research has been carried out to see how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. The signs and indicators appear to be quite positive, and criminal justice clients that experience treatment have better possibility of remaining out of the system after rehabilitation.