Criminal justice client rehabs are available as a considerably better option than time in jail or significant fines for many who have already been convicted of any sort of alcohol or drug related crime. For example, a person who has been found guilty of driving while impaired of drugs or alcohol may qualify for rehabilitation services for his or her problem instead of serving time in jail. The judge could even order that the individual receive rehabilitation, either alone or in addition to other sentencing. First-time offenders in particular in many cases are given the opportunity to choose a criminal justice client rehab as opposed to other sentencing, and it is well-advised that they benefit from it when it is a possibility. The concept behind criminal justice client rehabs is it is far more effective and efficient to invest time and effort into treatment than punishment. Much research has been done to observe how effective this approach 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 quite positive, and criminal justice clients who do experience rehab have a much better possibility of remaining out of the judicial system following rehab.