Criminal justice client rehabs are available being a significantly better option than time in jail or heavy fines for individuals who have been convicted of any type of alcohol or drug related crime. For example, someone who has been in prison for driving under the influence of drugs or alcohol may qualify to get rehab services for their problem as opposed to serving time in prison. The judge could even order that the individual receive rehabilitation, either alone or along with other sentencing. First time offenders specifically tend to be given the chance to select a criminal justice client rehab as opposed to other sentencing, and it is highly recommended they take advantage of it when it is a choice. The concept behind criminal justice client rehabs is that it is far more effective and efficient to invest effort and time into rehabilitation than enforcement of other consequences. Much research has been carried out to observe how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following treatment. The signs and indicators appear to be quite positive, and criminal justice clients who do experience rehabilitation have a better probability of remaining out of the system following rehab.