Criminal justice client rehabs can be considered as being a considerably better option than time in jail or heavy fines for those who have already been convicted of any sort of alcohol or drug related crime. As an example, a person who has been in prison for dui of alcohol or drugs may be eligible to obtain rehabilitation services because of their problem as opposed to serving time in jail. The judge may even order that the individual receive treatment, either alone or along with other sentencing. Very first time offenders in particular will often be given the opportunity choose a criminal justice client rehab as an alternative to other sentencing, and it is well-advised that they benefit from it when it is a choice. The theory behind criminal justice client rehabs is it is much more effective and efficient to invest time and energy into treatment than enforcement of other consequences. Much research has been done to find out how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. All indicators seem to be quite positive, and criminal justice clients that do take part in rehab have better potential for remaining out of the judicial system following rehabilitation.