Criminal justice client rehabs are available like a considerably better option than jail time or significant fines for many who have already been convicted of any type of alcohol or drug related crime. As an example, anyone who has been in prison for driving under the influence of alcohol or drugs may be eligible to receive rehabilitation services because of their problem instead of serving time in prison. The judge might order that the individual receive rehab, either alone or along with other sentencing. First-time offenders in particular in many cases are given the ability to select a criminal justice client rehab as an alternative to other sentencing, and it is well-advised that they reap the benefits of it if it is a possibility. The theory behind criminal justice client rehabs is that it is far more efficient and effective to invest effort and time into treatment than enforcement of other consequences. Much research has been carried out to find out how effective this strategy is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following treatment. The signs and indicators seem to be quite positive, and criminal justice clients that do experience treatment have a much better possibility of remaining out of the judicial system following treatment.