Part I: Card Game Cheating · Collusion & Electronic Cheating at Card Games

Scam #26: Radio Transmitter Collusion System

How it works

A comprehensive electronic cheating system where hidden radio transmitters and receivers facilitate real-time communication between colluders. One player may wear a hidden microphone or have a concealed camera transmitting to an accomplice in a remote location (parking lot, hotel room) who analyzes the situation and transmits instructions back via earpiece or vibration device. Systems can include hidden cameras in clothing, Bluetooth earpieces concealed in ears, induction loop receivers, and cell phones configured for covert operation.

Where it appears

Poker, blackjack, baccarat, all card games

On the record

The 2024 French casino case involved players who transmitted card images to an accomplice in the casino parking lot, who then relayed information back via a microscopic earpiece. The FBI’s 2025 illegal gambling indictment alleged use of hacked shufflers transmitting to remote operators who then sent information to “quarterback” players at the table.

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.