Criminal justice client rehabs are available as a far better option than prison time or significant fines for those who have been convicted of any sort of drug or alcohol related crime. By way of example, someone who has been found guilty of driving under the influence of alcohol or drugs may be eligible to obtain rehab services for their problem rather than serving time in jail. The judge could even order the individual receive rehabilitation, either alone or along with other sentencing. First-time offenders specifically are often given the opportunity to go with a criminal justice client rehab as an alternative to other sentencing, and it is well-advised they make the most of it if it is a possibility. The theory behind criminal justice client rehabs is that it is much 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 seem quite positive, and criminal justice clients who do experience treatment have a much better possibility of remaining out of the system after rehab.