Criminal justice client rehabs are available as a significantly better option than time in jail or significant fines for individuals who have already been convicted of any sort of alcohol or drug related crime. For example, anyone who has been found guilty of driving under the influence of alcohol or drugs may qualify to receive treatment services for problem instead of serving time in prison. The judge might even order the individual receive treatment, either alone or together with other sentencing. Very first time offenders in particular in many cases are given the ability to go with a criminal justice client rehab as opposed to other sentencing, and it is highly recommended that they take advantage of it when it is an option. The theory behind criminal justice client rehabs is that it is far more effective and efficient to invest commitment into rehabilitation than enforcement of other consequences. Much research has been carried out to discover how effective this strategy is on recidivism rates, i.e. if the individual returns or not to criminal justice system following treatment. The signs and indicators appear to be quite positive, and criminal justice clients who do take part in rehabilitation have a better probability of remaining out of the system after treatment.