Criminal justice clients in Havana, Illinois often end up in drug and alcohol treatment programs due to the fact they were convicted of crimes relating to drugs, whether they were selling drugs or had drugs in their possession or were found to be high on drugs. Some courts put these types of individuals into the alcohol and drug treatment system mainly due to the fact that they feel that rehabbing these persons will be more helpful for society and for the individual, rather than sending them behind bars with no rehabilitation at all. This has been proven to be incredibly effective not only in treating and rehabilitating this type of client in Havana, Illinois, but also in keeping them off of drugs and in a lot of situations out of the criminal justice system for good.