In Arizona, casinos have a self-exclusion process in place where people who have a gambling problem can inform the casinos of their problem and request to be banned. The casinos in turn have the person sign a voluntary trespass form and the individuals get put on a list. The self-exclusion is irrevocable and cannot be altered or rescinded for any reason during the time period elected on the form. Some of these people still go back to the casinos and still lose large amounts of money. However, if they win a large jackpot, the casinos request the winners name and the list to see if they signed the voluntary trespass form. If they did, then the casino will call the police and the individual is criminally charged with trespassing. Moreover, the casino does NOT give the jackpot winnings to the individual. Keep in mind, although the casino keeps the individual's winning jackpot, the casino does NOT return the losses to the individual.