Criminal justice client rehabs are available as a significantly better option than time in jail or significant fines for those who have already been convicted of any type of alcohol or drug related crime. For example, somebody who has been found guilty of driving while impaired of alcohol or drugs may be eligible for rehab services for his or her problem rather than serving time in prison. The judge might even order that the individual receive rehab, either alone or in addition to other consequences. First time offenders specifically will often be given the ability to select a criminal justice client rehab instead of other sentencing, and it is highly recommended that they take advantage of it when it is a possibility. The concept behind criminal justice client rehabs is that it is way more effective and efficient to invest commitment into rehab than punishment. Much research has been carried out to see how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. The signs and indicators appear to be quite positive, and criminal justice clients that take part in rehabilitation have a better possibility of remaining out of the system following rehab.