Criminal justice client rehabs are available as being a considerably better option than prison time or heavy fines for individuals who have been convicted of any sort of alcohol or drug related crime. As an example, somebody who has been in prison for dui of alcohol or drugs may qualify to receive treatment services because of their problem instead of serving time in prison. The judge might order that the individual receive rehabilitation, either alone or together with other sentencing. First-time offenders specifically in many cases are given the opportunity to choose a criminal justice client rehab as opposed to other sentencing, and it is highly recommended that they make the most of it when it is a possibility. The theory behind criminal justice client rehabs is that it is much more effective and efficient to invest time and effort into rehab than enforcement of other consequences. Much research has been completed to find out how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. All 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 following treatment.