1 How to Spot Cheaters at the Casino
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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.

The casino's "Eye in the Sky" catches most of them eventually, but recognizing the signs of a scam unfolding right next to you is a fascinating skill.
How Cheaters Manipulate Casino Chips
The most common and arguably the most difficult-to-detect method of table game cheating is a sleight-of-hand maneuver known universally as "past posting."

While the dealer's eyes are momentarily distracted by the sudden commotion, the extra high-denomination chips are seamlessly slid onto the winning betting circle.
The scam almost always involves a loud, intentional distraction created by an accompliceCheaters also use "pinching," which is removing chips from a bet after losing the handIf a player is constantly hovering their hands near their chips after the deal, pit bosses become highly suspicious 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.

By convincing the dealer to rotate specific high-value cards 180 degrees, the player can easily identify them before they are dealt, completely destroying the house edge.
The Mechanics of a Craps Scam
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.

This mathematically alters the probability of hitting a 7, giving the cheater a massive, incredibly illegal advantage over the house.
Scam NameRequired Skill LevelDetection DifficultyDice SlidingExtremely High (Physical skill)Low (Dealers watch the throw closely)Invisible InkLow (Requires tainted deck)High (Requires UV light to detect)
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.