Gambling in Cambodia is officially illegal under the 1996 Law on Suppression of Gambling, which outlawed all unauthorized forms of gambling and provided for penalties ranging from monetary fines to short prison sentences, although the Cambodian government's General Department of Prisons does not list gambling as one of the 28 offenses punishable by imprisonment.
The prohibition on gambling, which also extends to all forms of online gambling, only applies to Cambodian citizens. As of October 2015, there were 75 casinos catering to foreign tourists operating within Cambodia, providing an estimated USD 29 million in revenue to the national government in the first nine months of the year and USD 2 billion in income for the casinos. Cambodian citizens are allowed to gamble through government sponsored gaming including five separate privately run national lotteries. Cambodians were also previously permitted to play the slot machines located in the nation's casinos, however due to complaints of violence related to gambling debts and widespread problem gambling, slot machines were banned in 2009.
Gambling as a popular pastime is ingrained in Southeast Asian culture in general and Cambodian culture in particular. Men who don't gamble are often viewed as not masculine. Consequently, despite the laws against citizens gambling, illegal gambling is widespread in Cambodia. The police forces in Cambodia, ruled by one of the most corrupt governments in the world, often look the other way as casinos freely allow locals to enter and provide private rooms for government and law enforcement officials, who oftentimes have a vested financial interest in the casinos, to conduct illegal gambling. Extralegal activities are also widespread outside of the permitted casinos ranging from cockfights and card rooms to sports book (primarily regional football matches and kickboxing) and unauthorized lotteries. Most of these activities are controlled by organized crime and protected by bribes to law enforcement.