Criminal justice client rehabs can be considered as being a far better option than time in jail or significant fines for those who have already been convicted of any kind of drug or alcohol related crime. As an example, anyone who has been in prison for dui of alcohol or drugs may be eligible to get rehab services for his or her problem rather than serving time in jail. The judge may even order that the individual receive rehabilitation, either alone or together with other sentencing. First time offenders specifically will often be given the opportunity pick 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 an alternative. The theory behind criminal justice client rehabs is that it is much more efficient and effective to invest effort and time into rehabilitation than punishment. Much research has been done 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 rehab. All indicators seem quite positive, and criminal justice clients that experience rehab have a much better probability of remaining out of the system after treatment.