South Korea Casino’s Suspiciously High Winnings Expose Alleged $72K Cheating Scheme

Key Points

  • Two Jeju casino dealers allegedly used marked cards to help three Chinese tourists cheat the property out of approximately $72,000
  • Government monitoring uncovered the suspected scheme after regulators flagged unusually high blackjack payouts at the casino
  • Police have not disclosed the dealers’ alleged motive or said whether investigators believe anyone else at the casino was involved

Two casino dealers on South Korea’s Jeju Island are under investigation for allegedly using marked cards to cheat three Chinese tourists out of around KRW100 million (US$72,000) at a blackjack table.

Jeju casino, South Korea casino, casino cheating, marked cards, Chinese tourists
Jeju’s government monitoring system reportedly flagged unusually high blackjack profits, prompting officials to scrutinize the casino’s games. (Image: Shutterstock)

Two employees at an unidentified hotel casino on Jeju Island have been referred to prosecutors on fraud charges after provincial gambling regulators detected unusually high player winnings at blackjack tables.

The alleged cheating scheme took place on June 7 and June 8, according to South Korea’s News1. The foreign gamblers involved subsequently left the country, allegedly taking their illicit winnings with them before the scheme was uncovered.

Police allege the dealers used specially marked cards whose values could be identified from tiny alterations to their backs or edges.

Too Much Won, Too Fast

Jeju provincial authorities and South Korea’s National Forensic Service jointly operate a casino management monitoring system designed to audit gaming activity across the island’s properties.

The system flagged blackjack payouts at the property that were significantly higher than statistical norms and out of line with other table games, prompting regulators to launch an immediate inspection.

During the audit, investigators seized decks suspected of being marked and secured surveillance footage showing evidence of game manipulation. Regulators subsequently turned the physical and digital evidence over to law enforcement.

The investigation initially focused on whether cards had been altered to give players an illegal edge. By July, police formally referred the two dealers to prosecutors on fraud allegations.

Jeju officials have said they will determine whether to impose administrative sanctions on the casino after the criminal investigation is completed.

Foreigners Only

Jeju is home to several casinos catering exclusively to foreign passport holders, with South Korean nationals generally prohibited from gambling at them.

Jeju’s casino industry has traditionally been heavily dependent on visitors from China and other parts of East Asia.

Police have not publicly said whether they believe the dealers acted independently, whether anyone else at the casino was involved, or what ultimately happened to the money allegedly obtained from the players.

Shades of Daegu

The allegations echo an earlier South Korean casino cheating scandal in which executives, managers, and dealers were prosecuted for conspiring to rig games against tourists.

Twelve former and current employees of Daegu Casino, including senior executives, were accused of using prearranged cards and specially trained “black dealers” to cheat Chinese and Japanese gamblers out of the equivalent of $3.5 million.

Prosecutors said senior figures directed subordinates to participate in the scheme.

The defendants were convicted last year, and the Daegu High Court largely upheld their suspended prison sentences on appeal last week.

Philip Conneller
Philip Conneller Senior Reporter

In Philip Conneller’s eight years with Casino.org, he has covered the gaming industry from Las Vegas to Macau and everything in between. He currently focuses his coverage on gaming law, white-collar crime, global money laundering, tribal gaming, politics, and regulation.

Philip was the original features editor for poker’s Bluff Magazine and editor for Bluff Europe, which he helped launch. His writing has also been featured in ESPN, Forbes, Time Out, The Sun, and The Daily Star, as well as iGaming Business, eGaming Review, and numerous other industry news and tech websites.

His news stories for Casino.org/news have been linked by The Washington Post, The Daily Mail, People Magazine, and Jimmy Fallon's Tonight Show, among many others.

Philip once won $20,000 with 7-2 off-suit. He has been reprimanded for unwittingly playing Elton John’s piano on two separate occasions on both sides of the Atlantic.

He became a writer because he is a lousy pianist.

Philip lives outside London with his wife and children, where he spends his time agonizing about Arsenal FC.

Contact Philip at philip.conneller@casino.org.

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