Criminal justice client rehabs are available as being a considerably better option than prison time or significant fines for individuals who have been convicted of any kind of drug or alcohol related crime. As an example, somebody who has been in prison for driving under the influence of drugs or alcohol may be eligible to receive treatment services for their problem as an alternative to serving time in jail. The judge may even order that the individual receive rehab, either alone or together with other sentencing. First-time offenders specifically will often be given the ability to pick a criminal justice client rehab rather than other sentencing, and it is highly recommended that they make the most of it when it is a possibility. The theory behind criminal justice client rehabs is that it is far more efficient and effective to invest time and energy into rehabilitation than punishment. Much research has been carried out to find out how effective this process is on recidivism rates, i.e. if the individual returns or not to criminal justice system following treatment. All indicators seem quite positive, and criminal justice clients who experience treatment have a better probability of remaining out of the system after rehabilitation.