Field guide

Hidden Camera / Button Hole Cameras

How it works

Ultra-small cameras concealed in clothing, jewelry, or accessories that stream hole card information to confederates outside the casino. Cameras hidden in shirt buttons, belt buckles, watches, or glasses capture hole cards as players peek. The feed goes to a van or room where confederates analyze and relay strategy via earpiece or vibration device.

On the record

Button-hole cameras have been found in multiple casino cheating arrests. In 2024, psychologist Maria Konnikova discussed nano cameras making card protectors, electronics, and sunglasses potential cheating risks.

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.