Criminal justice client rehabs can be considered like a considerably better option than incarceration or significant fines for individuals who have already been convicted of any kind of alcohol or drug related crime. By way of example, anyone who has been in prison for driving under the influence of alcohol or drugs may be eligible to get treatment services because of their problem instead of serving time in prison. The judge may even order that the individual receive rehab, either alone or in addition to other consequences. Very first time offenders in particular will often be given the ability to select a criminal justice client rehab rather than other sentencing, and it is well-advised they take advantage of it when it is a possibility. The theory behind criminal justice client rehabs is that it is much more effective and efficient to invest time and energy into rehab than enforcement of other consequences. Much research has been carried out 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 quite positive, and criminal justice clients who do take part in rehabilitation have a much better probability of remaining out of the system after rehabilitation.