Criminal justice client rehabs are available being a considerably better option than prison time or significant fines for those who have already been convicted of any sort of alcohol or drug related crime. For instance, anyone who has been in prison for dui of drugs or alcohol may be eligible to receive treatment services because of their problem rather than serving time in prison. The judge might even order that the individual receive rehab, either alone or along with other consequences. First time offenders specifically tend to be given the opportunity to pick a criminal justice client rehab as an alternative to other sentencing, and it is highly recommended they make the most of it if it is an alternative. 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 observe how effective this process is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. All indicators seem to be quite positive, and criminal justice clients that do experience treatment have a much better possibility of remaining out of the judicial system following rehabilitation.