A man who promises profits with his “guaranteed system” of gambling was busted in Las Vegas on fraud charges, local media reported.

Mark Georgantas was arrested last week at the Hard Rock Casino on two counts of securities fraud. The fraud allegedly took place between July 2013 and March 2014, News3LV reported.

According to the court indictment, the 53-year-old promised his victims profits on their investments with the help of a “guaranteed system” of gambling that he created. One of the victims paid out Georgantas more than $300,000, while the second victim shelled out more than $50,000 for the said investment.

This isn’t the first time Georgantas has had a run in with the authorities.