Criminal justice client rehabs are available as being a far better option than time in jail or significant fines for those who have already been convicted of any sort of drug or alcohol related crime. As an example, somebody who has been in prison for driving drunk of alcohol or drugs may be eligible to obtain treatment services for his or her problem rather than serving time in jail. The judge might order the individual receive rehabilitation, either alone or along with other consequences. First time offenders in particular will often be given the opportunity choose a criminal justice client rehab as an alternative to other sentencing, and it is well-advised they benefit from it if it is a choice. The theory behind criminal justice client rehabs is that it is much more effective and efficient to invest effort and time into rehabilitation than enforcement of other consequences. Much research has been carried out to observe how effective this process is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. The signs and indicators seem to be quite positive, and criminal justice clients that do experience rehab have a much better possibility of remaining out of the judicial system after rehab.