Criminal justice client rehabs can be considered as a significantly better option than incarceration 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 drunk of alcohol or drugs may be eligible for treatment services for his or her problem instead of serving time in prison. The judge might even order that the individual receive rehab, either alone or in addition to other sentencing. First time offenders in particular will often be given the chance to select a criminal justice client rehab as opposed to other sentencing, and it is well-advised they reap the benefits of it when it is a possibility. The theory behind criminal justice client rehabs is it is much more effective and efficient to invest time and effort into rehabilitation 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 rehabilitation. The signs and indicators seem to be quite positive, and criminal justice clients who take part in rehabilitation have a much better potential for remaining out of the system following treatment.