Criminal justice client rehabs are available as a considerably better option than jail time or heavy fines for many 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 while impaired of alcohol or drugs may qualify to get rehabilitation services for problem instead of serving time in jail. The judge might order the individual receive treatment, either alone or along with other sentencing. First time offenders specifically tend to be given the opportunity to choose a criminal justice client rehab as opposed to other sentencing, and it is well-advised that they take advantage of it if it is an alternative. The concept behind criminal justice client rehabs is it is far more effective and efficient to invest effort and time into treatment than enforcement of other consequences. Much research has been done to find out how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. All indicators seem quite positive, and criminal justice clients who do experience rehab have a better probability of remaining out of the system following treatment.