Criminal justice client rehabs are available being a significantly better option than incarceration or significant fines for those who have been convicted of any type of drug or alcohol related crime. For example, someone who has been in prison for driving under the influence of drugs or alcohol may be eligible to receive rehabilitation services for their problem as an alternative to serving time in prison. The judge might order that the individual receive treatment, either alone or in addition to other sentencing. First-time offenders specifically in many cases are given the opportunity choose a criminal justice client rehab as opposed to 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 that it is much more efficient and effective to invest effort and time into rehabilitation than enforcement of other consequences. Much research has been carried out to find out how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehabilitation. All indicators seem quite positive, and criminal justice clients that experience rehabilitation have a much better potential for remaining out of the system after rehab.