Illegal Gambling Business / 18 U.S.C. Sec. 1955 is a federal law that prohibits the running of a gambling business that is illegal under state or local law. This law applies to any person who conducts, finances, manages, supervises, directs, or owns all or part of an illegal gambling business. It also applies to those who knowingly assist in the operation of an illegal gambling business or receive proceeds from the business. This law applies to any kind of gambling or wagering, including sports betting, casino games, and lottery activities. Types of illegal gambling businesses covered by this law include bookmaking, numbers and lottery games, and slot machines.