Criminal justice clients are a large percentage of clients who take part in drug rehabilitation facilities in Campbell and in the USA. Judicial systems in the U.S. are finding it more advantageous to treat people who have found their way into the court system for crimes relating to drugs, rather than punishing them in vain with jail time and other penalties. It is proven to be more successful to deal with the problem of drug addiction directly, than to enforce such penalties. The majority of who do not end up in alcohol and drug treatment will typically turn right back up in the criminal justice system, while criminal justice clients in alcohol and drug rehab often don't make the same mistakes and have a much better chance at staying sober and out of the court system completely.