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, and can predict outcomes within 0.5 seconds. External cameras hidden in everyday objects (watches, buttons, car keys, power banks) can extend the scanning range from 30cm to over 5 meters.

Where it appears

Texas Hold’em Poker, Omaha, Baccarat, Blackjack

On the record

Poker analyzer technology originated in China and has become increasingly sophisticated. Complete kits (analyzer, marked cards, earpiece, external camera) can cost $2,000-$5,000 or more. The technology has been documented at the World Game Protection Conference as a growing threat.

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.