Criminal justice client rehabs are available as a considerably better option than jail time or significant fines for those who have already been convicted of any type of drug or alcohol related crime. For example, a person who has been found guilty of dui of drugs or alcohol may be eligible for treatment services for their problem rather than serving time in prison. The judge might even order that the individual receive rehabilitation, either alone or along with other sentencing. First time offenders specifically will often be given the chance to go with a criminal justice client rehab as opposed to other sentencing, and it is well-advised they reap the benefits of it when it is a possibility. The theory behind criminal justice client rehabs is it is far more effective and efficient to invest time and effort into rehabilitation than punishment. Much research has been carried out to see how effective this process 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 that take part in rehab have a much better chance of remaining out of the system following rehabilitation.