Criminal justice client rehabs are available being a considerably better option than prison time or significant fines for many who have been convicted of any type of drug or alcohol related crime. For instance, somebody who has been in prison for driving under the influence of alcohol or drugs may qualify to get rehabilitation services for problem instead of serving time in jail. The judge may even order the individual receive rehabilitation, either alone or as well as other sentencing. First time offenders specifically are often given the opportunity to go with a criminal justice client rehab rather than other sentencing, and it is well-advised they make the most of it if it is a possibility. The theory behind criminal justice client rehabs is that it is way more effective and efficient to invest effort and time into rehab than enforcement of other consequences. Much research has been done to discover how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. The signs and indicators seem to be quite positive, and criminal justice clients that do take part in rehab have a much better chance of remaining out of the system following rehab.