Another tale of casino rouges from France happened in 1973, when a casino employee and his accomplices won $1,000,000+ through devious means. In an elaborate scheme the dealer build a radio transmitter into a packet of cigarettes, with a receiver inside the ball. When a button was pressed the ball would stop in a certain area of the wheel. not precise as such but the scheme was rumoured to have around 90% accuracy.
Again this scheme almost went unnoticed but the casino owner just so happy to be enamored by the roulette dealers sisters who was in on the scam. Due to his over interest he noticed one or two things that were off, and this eventually led to authorities figuring out what was happening. The scam was detailed in the 1984 movie Tricheurs (The Cheaters).