Criminal justice client rehabs are available as a considerably better option than prison time or significant fines for individuals who have already been convicted of any kind of drug or alcohol related crime. For example, a person who has been in prison for driving under the influence of drugs or alcohol may qualify for treatment services for his or her problem rather than serving time in prison. The judge may even order the individual receive treatment, either alone or together with other sentencing. New offenders in particular tend to be given the ability to select a criminal justice client rehab rather than other sentencing, and it is highly recommended that they take advantage of it if it is an alternative. The theory behind criminal justice client rehabs is it is much 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 approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. All indicators seem to be quite positive, and criminal justice clients that take part in rehabilitation have a better potential for remaining out of the system following treatment.