Part I: Card Game Cheating · CARD MARKING METHODS
Barcode Marked Cards with Poker Analyzer
How it works
Barcode marked cards have invisible barcodes printed on all four edges. These barcodes are undetectable to the naked eye and cannot be read with IR contact lenses or sunglasses. A “poker analyzer” device (disguised as a smartphone) with a built-in camera scans the barcodes, processes the information, and announces results via a hidden Bluetooth earpiece. The analyzer determines the winning hand, calculates odds. Hidden cameras built into everyday objects (such as a chip tray) can read the marks from a distance.
Where it appears
Texas Hold’em Poker, Omaha, Baccarat, Blackjack
Detection & preventionADVISORY
The paid halfHow a monitoring room catches barcode marked cards with poker analyzer, 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.