Criminal justice client rehabs are available as being a significantly better option than prison time or significant fines for those who have already been convicted of any kind of drug or alcohol related crime. For instance, someone who has been in prison for driving drunk of alcohol or drugs may qualify for rehabilitation services for his or her problem rather than serving time in jail. The judge may even order the individual receive treatment, either alone or as well as other sentencing. First time offenders specifically tend to be given the opportunity to pick a criminal justice client rehab as an alternative to other sentencing, and it is highly recommended they take advantage of it when it is an alternative. The concept behind criminal justice client rehabs is it is much more effective and efficient to invest effort and time into treatment than punishment. Much research has been carried out to observe how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following treatment. All indicators seem to be quite positive, and criminal justice clients who experience rehabilitation have a much better chance of remaining out of the system following rehabilitation.