Since the very first casino opened its doors, an endless war has raged between the operators trying to protect their money and the criminals trying to steal it.

Understanding exactly how these professional thieves operate not only satisfies a morbid curiosity but also protects honest players from becoming collateral damage at a compromised table.
Understanding the "Past Posting" Scam
If they win a hand of blackjack, their original $10 bet is magically transformed into a $100 bet right before the dealer pays them out.

This scam requires absolute, flawless timing, massive distraction, and the steady, lightning-fast hands of a professional close-up magician.
Modern roulette tables feature advanced sensors to detect any chip movement after the ball dropsDealers are trained to intensely stare at the chips immediately after announcing the winning numberPast posting is a severe felony offense, not a simple misunderstanding of the rules The Complex Scam of Edge Sorting
Historically, this involved utilizing invisible ink readable only with special contact lenses, or using a fingernail to create a tiny, microscopic dent in the cardboard.

Edge sorting relies on finding tiny, microscopic manufacturing defects in the geometric patterns printed on the absolute back edge of the casino's playing cards.
Dice Sliding at the Craps Table
Instead of throwing the dice into the air, the cheater expertly slides one of the dice completely flat across the felt, preventing it from ever tumbling.

By keeping the desired number facing upward during the entire slide, they only have to worry about the random outcome of the second tumbling die.
Cheater ActionDealer Counter-MeasurePinching (Stealing back a lost bet)Clearing losing bets before paying winnersMarking Cards with fingernailsReplacing the entire shoe of cards frequently
If you suspect a player at your table is manipulating the game, simply walk away and let the eye in the sky do its job.