Criminal justice clients in Lyon make their way into alcohol and drug rehab centers due to the fact they were convicted of crimes relating to drugs, whether they were distributing drugs or had drugs in their possession or were found to be high on drugs. Many courts put these convicted persons into the drug rehab system mainly due to the fact that they consider that rehabbing these persons is more productive for society and for the person, rather than placing them in prison with no rehabilitation at all. This has been verified to be incredibly effective not only in helping and rehabilitating these criminal justice clients in Lyon, but also in keeping them sober and in a number of instances out of the criminal justice system permanently.