Criminal justice client rehabs are available as being a significantly better option than time in jail or significant fines for those who have already been convicted of any sort of alcohol or drug related crime. By way of example, someone who has been in prison for driving while impaired of drugs or alcohol may be eligible to obtain rehab services for their problem as an alternative to serving time in prison. The judge might order that the individual receive rehabilitation, either alone or along with other consequences. First time offenders in particular will often be given the chance to choose a criminal justice client rehab instead of other sentencing, and it is well-advised they reap the benefits of it if it is an option. The theory behind criminal justice client rehabs is that it is way more effective and efficient to invest time and effort into rehabilitation than enforcement of other consequences. Much research has been completed to see how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following treatment. The signs and indicators seem to be quite positive, and criminal justice clients that do take part in treatment have better possibility of remaining out of the system following rehabilitation.