Criminal justice client rehabs are available as a considerably better option than prison time or heavy fines for those who have already been convicted of any kind of alcohol or drug related crime. For instance, someone who has been in prison for driving under the influence of alcohol or drugs may qualify to receive rehab services because of their problem as opposed to serving time in prison. The judge might even order the individual receive treatment, either alone or along with other sentencing. First time offenders in particular in many cases are given the ability to select a criminal justice client rehab as an alternative to other sentencing, and it is highly recommended that they make the most of it if it is a choice. The concept behind criminal justice client rehabs is that it is way more efficient and effective to invest effort and time into rehab than punishment. Much research has been done to see how effective this process 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 who experience treatment have a better potential for remaining out of the judicial system following treatment.