Criminal justice client rehabs are available being a far better option than time in jail or significant fines for many who have already been convicted of any kind of drug or alcohol related crime. For example, someone who has been in prison for driving under the influence of drugs or alcohol may qualify to get rehabilitation services for their problem as an alternative to serving time in jail. The judge may even order the individual receive rehab, either alone or along with other sentencing. Very first time offenders specifically will often be given the ability to pick a criminal justice client rehab as opposed to other sentencing, and it is well-advised that they make the most of it when it is an alternative. The theory behind criminal justice client rehabs is that it is much more effective and efficient to invest time and energy into rehabilitation than punishment. Much research has been done to observe how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. All indicators appear to be quite positive, and criminal justice clients who take part in treatment have a better chance of remaining out of the system following rehab.