Criminal justice client rehabs are available as being a significantly better option than time in jail or significant fines for individuals who have already been convicted of any kind of alcohol or drug related crime. As an example, somebody who has been in prison for driving under the influence of drugs or alcohol may be eligible for rehab services for his or her problem rather than serving time in prison. The judge might even order the individual receive treatment, either alone or in addition to other consequences. New offenders specifically will often be given the ability to choose a criminal justice client rehab rather than other sentencing, and it is well-advised they take advantage of it if it is an alternative. The theory behind criminal justice client rehabs is that it is much more efficient and effective to invest time and effort into rehab than punishment. Much research has been done to see how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following treatment. The signs and indicators seem to be quite positive, and criminal justice clients that do take part in rehab have a much better probability of remaining out of the system after rehab.