Criminal justice client rehabs are available being a far better option than prison time or heavy fines for many who have already been convicted of any sort of alcohol or drug related crime. For instance, a person who has been in prison for dui of drugs or alcohol may be eligible to get rehabilitation services because of their problem as an alternative to serving time in jail. The judge could even order that the individual receive rehab, either alone or in addition to other sentencing. First-time offenders in particular will often be given the opportunity to pick a criminal justice client rehab rather than other sentencing, and it is well-advised that they take advantage of it when it is a choice. The idea behind criminal justice client rehabs is that it is far more effective and efficient to invest effort and time into rehabilitation than punishment. Much research has been done to see how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. All indicators appear to be quite positive, and criminal justice clients that do take part in rehabilitation have better potential for remaining out of the judicial system following treatment.