Criminal justice client rehabs can be considered being a far better option than jail time or heavy 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 treatment services for his or her problem as opposed to serving time in prison. The judge may even order the individual receive rehabilitation, either alone or as well as other sentencing. Very first time offenders in particular are often given the opportunity select a criminal justice client rehab instead of other sentencing, and it is well-advised they take advantage of it if it is a possibility. The theory behind criminal justice client rehabs is it is much more efficient and effective to invest time and energy into treatment than enforcement of other consequences. Much research has been carried out to see how effective this strategy is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. The signs and indicators seem quite positive, and criminal justice clients who experience rehabilitation have better probability of remaining out of the system after rehab.