Abstract: A processing system for a gambling game includes a first self-contained and portable device enabling the reading, erasing and inscription on a data medium as well as the verification of the result of a drawing; a second fixed device associated with a computer of a betting management center enabling the reading of data written on the data medium by the first device, transmission to the management center for recording the read data of the bets, indication and optionally collection of sums of money to be collected as a stake and the inscription on the data medium in an area to which the first device has no access of indications relative to bet data. A drawing is defined to be the contents of a future event, the forecasting of which by a gambler allows him to win at least part of a stake.