Criminal justice client rehabs are available being a significantly better option than jail time or heavy fines for many who have already been convicted of any sort of alcohol or drug related crime. For example, a person who has been in prison for dui of drugs or alcohol may be eligible to get rehabilitation services for their problem instead of serving time in prison. The judge may even order that the individual receive treatment, either alone or in addition to other sentencing. Very first time offenders in particular in many cases are given the chance to choose a criminal justice client rehab instead of other sentencing, and it is well-advised they reap the benefits of it if 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 rehabilitation than enforcement of other consequences. Much research has been done to observe how effective this approach 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 who experience treatment have a better probability of remaining out of the system after treatment.