Criminal justice client rehabs can be considered as a significantly better option than prison time or heavy fines for those who have already been convicted of any type of drug or alcohol related crime. By way of example, anyone who has been found guilty of driving under the influence of alcohol or drugs may be eligible to obtain treatment services for their problem instead of serving time in prison. The judge may even order that the individual receive rehab, either alone or along with other sentencing. First-time offenders in particular are often given the opportunity to pick a criminal justice client rehab rather than other sentencing, and it is well-advised that they reap the benefits of it when it is a choice. The theory behind criminal justice client rehabs is that it is much more effective and efficient to invest time and effort into treatment than enforcement of other consequences. Much research has been done to see how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. All indicators appear to be quite positive, and criminal justice clients who do take part in treatment have a much better chance of remaining out of the system after rehab.