Criminal justice client rehabs are available as being a far better option than time in jail or heavy fines for individuals who have already been convicted of any type of drug or alcohol related crime. For instance, somebody who has been found guilty of driving drunk of alcohol or drugs may qualify to obtain rehabilitation services because of their problem instead of serving time in jail. The judge might order that the individual receive treatment, either alone or along with other sentencing. First-time offenders in particular will often be given the ability to choose a criminal justice client rehab as opposed to other sentencing, and it is highly recommended they take advantage of it if it is an option. The idea behind criminal justice client rehabs is it is far more effective and efficient to invest time and effort into rehab than punishment. Much research has been carried out to see how effective this process 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 take part in rehabilitation have a much better chance of remaining out of the system following rehab.