Criminal justice client rehabs can be considered as being a considerably better option than time in jail or heavy fines for many who have already been convicted of any type of alcohol or drug related crime. For example, someone who has been in prison for dui of drugs or alcohol may be eligible to obtain rehab services for their problem rather than serving time in prison. The judge could even order that the individual receive rehab, either alone or along with other sentencing. New offenders specifically will often be given the ability to go with a criminal justice client rehab as opposed to other sentencing, and it is highly recommended they benefit from it if it is an option. The theory behind criminal justice client rehabs is that it is much 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. All indicators appear to be quite positive, and criminal justice clients that take part in treatment have a much better probability of remaining out of the system following rehab.