Casinos used to be the #1 target of money laundering ,
Money is first wired from their offshore bank account to a casino in some tourist centre abroad. The casino pays the money in chips; the chips are then cashed in; and the money is repatriated via bank check, money-order or wire transfer to their domestic bank account where it can be explained as the result of good luck during a gambling junket. Organized crime groups have been known to purchase winning race track and lottery tickets for a premium to help account for their cash.