Criminal justice client rehabs can be considered as a considerably better option than incarceration or heavy 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 alcohol or drugs may be eligible to receive treatment services for problem rather than serving time in jail. The judge might even order the individual receive rehabilitation, either alone or together with other sentencing. First time offenders in particular will often be given the ability to choose a criminal justice client rehab rather than other sentencing, and it is highly recommended they benefit from it if it is a possibility. The concept behind criminal justice client rehabs is it is far more effective and efficient to invest time and effort into rehabilitation than enforcement of other consequences. Much research has been done to observe how effective this approach is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehabilitation. All indicators appear to be quite positive, and criminal justice clients that do take part in rehab have a better chance of remaining out of the system after rehabilitation.