Criminal justice client rehabs are available being a considerably better option than prison time or significant fines for many who have already been convicted of any sort of alcohol or drug related crime. For example, a person who has been found guilty of driving under the influence of drugs or alcohol may qualify to receive treatment services for his or her problem as an alternative to serving time in jail. The judge might even order the individual receive rehab, either alone or as well as other sentencing. First time offenders specifically are often given the opportunity to select a criminal justice client rehab as opposed to other sentencing, and it is well-advised that they make the most of it if it is a choice. The theory behind criminal justice client rehabs is that it is much more efficient and effective to invest time and effort into treatment 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 rehab. The signs and indicators seem quite positive, and criminal justice clients that take part in rehab have a much better probability of remaining out of the system after treatment.