Part II: Table Game Cheating · Roulette Cheating Methods · #3.31
Chip Capping on Winning Bets
How it works
After the ball has landed on a winning number, the cheater uses sleight of hand to add additional chips to their existing winning bet. Unlike classic past posting (placing a new bet on a number where there was no bet), chip capping increases the value of a bet that was already placed before the spin. The cheater may palm additional chips and drop them onto their winning stack while the dealer’s attention is on the wheel. Alternatively, the cheater may use a slide move that R. Paul Wilson describes for past posting: resting a hand on the layout with a chip hidden underneath, then using a snap of the thumb to slide the chip into place after the ball lands. The move is covered by a partner leaning over the table to “get a better look” at the result, blocking the dealer’s and cameras’ view of the capping action.
Where it appears
All roulette variants; most effective at busy tables
On the record
Chip capping is one of the most fundamental sleight-of-hand techniques in gambling fraud. The slide takes a lot of practice to do without any visible hand movement; cheaters rehearse it on a practice layout before attempting it in a casino.
Detection & preventionADVISORY
The paid halfHow a monitoring room catches chip capping on winning bets, and what stops it recurring, written for the desk, not the reader.
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Published as a detection reference for surveillance, compliance and gaming-operations professionals. Thresholds and tuning are set by the property. Nothing here is instruction: the method is described so it can be recognised.