Criminal justice client rehabs can be considered being a far better option than incarceration or significant fines for individuals who have already been convicted of any type of drug or alcohol related crime. For example, someone who has been in prison for driving under the influence of drugs or alcohol may be eligible for rehab services for their problem as opposed to 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 in many cases are given the opportunity to go with a criminal justice client rehab instead of other sentencing, and it is well-advised they take advantage of it if it is an option. The idea behind criminal justice client rehabs is that it is far more effective and efficient to invest effort and time into rehab than punishment. Much research has been carried out to discover how effective this approach is on recidivism rates, i.e. if the individual returns or not to criminal justice system following rehabilitation. The signs and indicators seem to be quite positive, and criminal justice clients that take part in rehab have better possibility of remaining out of the system after rehabilitation.