Criminal justice client rehabs are available as being a far better option than jail time or significant fines for those who have already been convicted of any sort of drug or alcohol related crime. As an example, a person who has been found guilty of driving while impaired of drugs or alcohol may qualify to get rehabilitation services because of their problem rather than serving time in prison. The judge might order that the individual receive rehabilitation, either alone or along with other consequences. First-time offenders specifically tend to be given the chance to choose a criminal justice client rehab rather than other sentencing, and it is highly recommended they take advantage of it when it is a possibility. The concept behind criminal justice client rehabs is it is far more efficient and effective to invest effort and time into treatment than punishment. Much research has been carried out to find out how effective this method 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 rehab have a better probability of remaining out of the system following rehab.