Criminal justice client rehabs can be considered being a considerably better option than time in jail or heavy fines for those who have already been convicted of any sort of drug or alcohol related crime. For instance, somebody who has been found guilty of driving while impaired of alcohol or drugs may be eligible to get rehab services for his or her problem rather than serving time in prison. The judge could even order that the individual receive rehab, either alone or in addition to other sentencing. First time offenders specifically tend to be given the opportunity go with a criminal justice client rehab rather than other sentencing, and it is well-advised that they benefit from it when it is a choice. The theory behind criminal justice client rehabs is that it is much more efficient and effective to invest effort and time into treatment than enforcement of other consequences. Much research has been done to find out how effective this method 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 experience rehab have a much better potential for remaining out of the system after rehabilitation.