Criminal justice client rehabs are available being a significantly better option than jail time or heavy fines for those who have already been convicted of any sort of alcohol or drug related crime. For example, someone who has been in prison for driving drunk of alcohol or drugs may be eligible to receive rehab services for their problem instead of serving time in jail. The judge could even order that the individual receive treatment, either alone or as well as other sentencing. Very first time offenders in particular tend to be given the opportunity go with a criminal justice client rehab as an alternative to other sentencing, and it is well-advised that they benefit from it when it is an alternative. The theory behind criminal justice client rehabs is it is far more effective and efficient to invest time and effort into rehab than enforcement of other consequences. Much research has been done to discover how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehabilitation. All indicators appear to be quite positive, and criminal justice clients who do experience rehab have a much better potential for remaining out of the judicial system after treatment.