"He says he has developed an anti-cheating device for slot machines," Nevada Deputy Attorney General Jennifer Carvalho testified. "However, that device can be readily converted to a cheating device." ...

These are some of the cheating devices criminals brought to Nevada casinos to trick slot machines into producing unwarranted payouts.

Sentencing has been postponed for two casino cheats listed in Nevada's Black Book and a woman who was their accomplice in a 2006 slot machine-cheating scheme used at several Las Vegas-area casinos.