Criminal justice client rehabs can be considered being a significantly better option than prison time or heavy fines for those who have been convicted of any type of drug or alcohol related crime. As an example, a person who has been in prison for driving under the influence of alcohol or drugs may be eligible to obtain rehabilitation services for problem instead of serving time in jail. The judge might even order the individual receive rehabilitation, either alone or together with other sentencing. New offenders in particular are often given the opportunity to pick a criminal justice client rehab instead of other sentencing, and it is highly recommended that they take advantage of it if it's a choice. The idea behind criminal justice client rehabs is that it is far more effective and efficient to invest effort and time into treatment than enforcement of other consequences. Much research has been carried out to discover how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. The signs and indicators appear to be quite positive, and criminal justice clients who do experience rehab have better chance of remaining out of the system following rehab.