Criminal justice client rehabs are available as a far better option than time in jail or significant fines for many who have already been convicted of any sort of alcohol or drug related crime. As an example, a person who has been in prison for driving while impaired of drugs or alcohol may be eligible to obtain treatment services because of their problem instead of serving time in jail. The judge might order that the individual receive rehabilitation, either alone or along with other consequences. First-time offenders specifically are often given the opportunity to go with a criminal justice client rehab as opposed to other sentencing, and it is highly recommended that they reap the benefits of it when it is an alternative. The theory behind criminal justice client rehabs is that it is way more efficient and effective to invest effort and time into rehab than enforcement of other consequences. Much research has been carried out to discover how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehabilitation. The signs and indicators appear to be quite positive, and criminal justice clients that do take part in rehabilitation have better possibility of remaining out of the judicial system following rehab.