Criminal justice client rehabs are available as being a considerably better option than time in jail or significant fines for many who have been convicted of any type of drug or alcohol related crime. For example, anyone who has been in prison for driving under the influence of drugs or alcohol may be eligible for rehabilitation services because of their problem instead of serving time in jail. The judge could even order that the individual receive rehabilitation, either alone or in addition to other sentencing. Very first time offenders in particular tend to be given the opportunity pick a criminal justice client rehab as opposed to other sentencing, and it is highly recommended that they reap the benefits of it when it is an alternative. The theory behind criminal justice client rehabs is it is way more effective and efficient to invest commitment 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 rehabilitation. The signs and indicators appear to be quite positive, and criminal justice clients who do experience rehab have better chance of remaining out of the system following treatment.