Criminal justice client rehabs are available as a significantly better option than time in jail or heavy fines for individuals who have been convicted of any sort of drug or alcohol related crime. For instance, anyone who has been found guilty of driving under the influence of drugs or alcohol may be eligible to obtain rehab services for problem as opposed to serving time in prison. The judge could even order that the individual receive treatment, either alone or in addition to other sentencing. First-time offenders specifically tend to be given the chance to pick a criminal justice client rehab rather than other sentencing, and it is well-advised they make the most of it if 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 rehab than enforcement of other consequences. Much research has been carried out to find out how effective this process is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. The signs and indicators appear to be quite positive, and criminal justice clients who experience rehabilitation have better potential for remaining out of the system after rehab.