Criminal justice client rehabs can be considered being a significantly better option than time in jail or significant fines for those who have been convicted of any sort of alcohol or drug related crime. As an example, someone who has been in prison for driving under the influence of drugs or alcohol may qualify to obtain rehab services for their problem as opposed to serving time in jail. The judge might order that the individual receive rehabilitation, either alone or together with other consequences. First-time offenders in particular tend to be given the opportunity to go with a criminal justice client rehab as an alternative to other sentencing, and it is well-advised they benefit from it if it's an option. The theory behind criminal justice client rehabs is that it is far more effective and efficient to invest time and energy into rehab than enforcement of other consequences. Much research has been carried out to discover how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehabilitation. All indicators seem quite positive, and criminal justice clients who experience rehabilitation have a better chance of remaining out of the system after rehabilitation.