Criminal justice client rehabs are available being a considerably better option than time in jail or significant fines for those who have already been convicted of any sort of drug or alcohol related crime. By way of example, someone who has been in prison for driving under the influence of drugs or alcohol may qualify for rehab services for their problem instead of serving time in jail. The judge might even order the individual receive treatment, either alone or together with other consequences. New offenders in particular will often be given the opportunity to choose a criminal justice client rehab as opposed to other sentencing, and it is highly recommended that they make the most of it if it is a choice. The concept behind criminal justice client rehabs is it is way more efficient and effective to invest effort and time into rehab than punishment. Much research has been carried out to see 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 appear to be quite positive, and criminal justice clients that experience rehab have a better probability of remaining out of the system after rehabilitation.