Criminal justice client rehabs are available as being a far better option than prison time or heavy fines for those who have already been convicted of any kind of drug or alcohol related crime. For example, somebody who has been in prison for driving drunk of drugs or alcohol may qualify to receive treatment services for their problem rather than serving time in prison. The judge may even order the individual receive treatment, either alone or in addition to other sentencing. First time offenders in particular are often given the ability to pick a criminal justice client rehab rather than other sentencing, and it is highly recommended that they make the most of it when it is a possibility. The concept behind criminal justice client rehabs is it is way more effective and efficient to invest effort and time into rehabilitation than enforcement of other consequences. Much research has been carried out to find out how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. The signs and indicators appear to be quite positive, and criminal justice clients who take part in rehabilitation have better potential for remaining out of the judicial system after treatment.