In 1982, a quantity of casinos in Britain started to lose massive sums of money at their roulette tables to groups of gamblers from the US. Upon investigation by the police, it was discovered they were using a legal system of biased wheel-section betting. As a results of this, the British roulette wheel producer John Huxley manufactured a roulette wheel to counteract the issue. To determine the successful quantity, a croupier spins a wheel in one direction, then spins a ball in the incorrect way around a tilted round monitor working across the outer edge of the wheel. The ball finally loses momentum, passes by way of an area of deflectors, and falls onto the wheel and into one of the coloured and numbered pockets on the wheel. The winnings are then paid to anyone who has positioned a successful guess.