An illegal casino operating in Japan was broken up by police in March 2014 that made an estimated $1,969,400 (200 Million Yen) in earnings over a 17 month period.
According to media reports, investigators discovered a rental contract between the illegal casino and the Embassy of Ghana in Japan. The casino was to pay the Ghana embassy $4,923.50 (500,000 Yen) in rent each month for being allowed to operate on property that belonged to the Ghanian Embassy.
Japanese nationals who were arrested in the raid stated that they thought that diplomatic immunity applied to them because the activities were taking place on property owned by the Ghana Embassy.
Source: Raphael Ofori-Adeniran, “Japan accuses Ghana of flouting gambling law,” SpyGhana, March 20, 2014.