Part IV: Financial Fraud · Internal Collusion & Employee Fraud · #8.36
Roulette Dealer Collusion - Late Betting
How it works
In roulette, past posting (placing a bet after the ball has landed) is normally caught by attentive dealers and surveillance. However, when a dealer is complicit, the scheme becomes highly effective. The dealer simply looks away or distracts themselves at the critical moment, allowing an accomplice to place a late bet on the winning number. The dealer then processes the bet as if it had been placed before the spin. More sophisticated versions involve teams where one player distracts the dealer while another places the late bet. The dealer may also use the “slide” technique - resting a hand on the layout with a chip hidden underneath, then imperceptibly sliding the chip onto the winning number with a thumb movement. A corrupt dealer can even claim they saw the bet on the layout before the spin, providing cover for the accomplice.
Where it appears
Roulette tables
On the record
Past posting is one of the oldest casino cheating techniques. When dealers are complicit, the success rate increases dramatically. Professional past-posting teams typically limit their activity to occasional shots under ideal misdirection conditions to avoid detection.
Detection & preventionADVISORY
The paid halfHow a monitoring room catches roulette dealer collusion - late betting, 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.