Criminal justice client rehabs are available as a significantly better option than jail time or significant fines for many who have already been convicted of any type of drug or alcohol related crime. For instance, a person who has been found guilty of driving drunk of drugs or alcohol may be eligible to receive rehab services because of their problem instead of serving time in prison. The judge may even order that the individual receive rehab, either alone or together with other sentencing. First time offenders specifically in many cases are given the opportunity select a criminal justice client rehab as opposed to other sentencing, and it is highly recommended they reap the benefits of it if it is an option. The theory behind criminal justice client rehabs is it is way more effective and efficient to invest time and effort into treatment than punishment. Much research has been carried out to discover how effective this process is on recidivism rates, i.e. if the individual returns or not to criminal justice system following treatment. All indicators appear to be quite positive, and criminal justice clients who experience rehabilitation have better probability of remaining out of the system after treatment.