Criminal justice client rehabs can be considered as being a considerably better option than time in jail or significant fines for those who have already been convicted of any type of drug or alcohol related crime. For instance, anyone who has been in prison for dui of drugs or alcohol may qualify to obtain rehab services for their problem rather than serving time in jail. The judge may even order the individual receive rehabilitation, either alone or as well as other consequences. First time offenders in particular in many cases are given the opportunity to choose a criminal justice client rehab rather than other sentencing, and it is highly recommended that they take advantage of it when it is an alternative. The theory behind criminal justice client rehabs is that it is way more effective and efficient to invest time and effort into rehabilitation than enforcement of other consequences. Much research has been carried out to discover how effective this method is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehab. The signs and indicators appear to be quite positive, and criminal justice clients that do take part in treatment have a much better potential for remaining out of the judicial system following rehabilitation.