Criminal justice client rehabs are available as being a far better option than jail time or significant fines for those who have already been convicted of any sort of drug or alcohol related crime. For example, someone who has been found guilty of driving while impaired of drugs or alcohol may be eligible to receive rehab services for his or her problem rather than serving time in jail. The judge might even order that the individual receive rehabilitation, either alone or as well as other sentencing. New offenders in particular tend to be given the ability to pick a criminal justice client rehab rather than other sentencing, and it is well-advised they take advantage of it if it is a possibility. The theory behind criminal justice client rehabs is that it is way more efficient and effective to invest effort and time into rehabilitation than punishment. Much research has been carried out to see how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following treatment. The signs and indicators seem quite positive, and criminal justice clients who take part in rehabilitation have a better chance of remaining out of the judicial system following treatment.