Fact and fiction mix
Casino was the pair of hopefuls where one was peeking at a Blackjack dealer's cards from another table and signalling whether they were good or bad. Result: one guy with a hammered hand and one offered a choice of the money and similar treatment or being thrown out more or less unharmed.
Roulette timing was either the 1980s lot from MIT who did it in Las Vegas with a 6502-based setup (before the CMOS version, so they had problems with the power requirements and sweating leading to painful sparks) or the pair who got away with having a laser in a Psion organiser in London detecting the ball's position.
The funny thing is that if casinos just stopped taking bets before putting the ball in play, this would be impossible. But that would mean less profit overall...
Biting the hand that feeds IT
