When an unfair gaming currency is delivered to a dealer from a player, the currency is detected as unfair. The inspection system 600 for inspecting the gaming currency, in which an RF tag is built, comprises: a gaming currency tray 617 for housing the gaming currencies C of the dealer in a casino game; an RF reader 6100 for reading the RF tags of the plural gaming currencies C housed in the gaming currency tray 617; plural photosensors 6173 for detecting at least the number of the plural gaming currencies C housed in the gaming currency tray 617 at a constant time interval or always in a method other than RFID; and an inspection/alarm part 6200 for generating alarms when the number of the gaming currencies C whose RF tags are read by the RF reader 6100 is not equal to the number of the gaming currencies C detected by the plural photosensors 6173.