Criminal justice client rehabs can be considered like a considerably better option than jail time or significant fines for those who have already been convicted of any kind of alcohol or drug related crime. For example, anyone who has been in prison for driving while impaired of alcohol or drugs may qualify to get rehabilitation services for his or her problem rather than serving time in jail. The judge might even order that the individual receive rehab, either alone or as well as other sentencing. First-time offenders specifically will often be given the opportunity choose a criminal justice client rehab rather than other sentencing, and it is highly recommended that they take advantage of it if it is a choice. The theory behind criminal justice client rehabs is it is much more efficient and effective to invest commitment into rehabilitation than enforcement of other consequences. Much research has been done to discover how effective this method is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. The signs and indicators appear to be quite positive, and criminal justice clients who take part in treatment have a better potential for remaining out of the system following rehabilitation.