Criminal justice client rehabs can be considered being a far better option than jail time or heavy fines for those who have already been convicted of any kind of alcohol or drug related crime. For instance, a person who has been in prison for driving under the influence of alcohol or drugs may be eligible for treatment services for problem rather than serving time in jail. The judge may even order that the individual receive rehabilitation, either alone or as well as other sentencing. New offenders specifically in many cases are given the opportunity choose a criminal justice client rehab as an alternative to other sentencing, and it is well-advised they reap the benefits of 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 energy into rehabilitation than punishment. Much research has been done to find out how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. The signs and indicators seem to be quite positive, and criminal justice clients who do take part in rehab have better potential for remaining out of the system after rehab.