This achievement will require you to get audited by the FBI. When you get audited you'll have to spin a wheel to determine what happens to your money. A "miracle" will let you keep your money plus you'll get an added 50% of what you currently have. It seems getting audited by the FBI is random, but I seemed to have better luck when I let the game run on it's own (not manually swiping). Then once you do you have to get rely on luck to get a "miracle" result.