Criminal justice clients in Allen make their way into drug and alcohol rehab facilities because they were convicted of crimes relating to drugs, whether they were selling drugs or were in the possession of or under the influence of drugs. Some judges put these criminal persons into the drug rehabilitation system because they consider that treating these persons is more effective for society and for the individual, rather than putting them in jail with no treatment at all. This has been proven to be incredibly successful not only in treating and rehabilitating this type of client in Allen, but also in helping them stay abstinent and in a lot of cases out of the criminal justice system for good.