Part I: Card Game Cheating · CARD MARKING METHODS

Scratch Work

How it works

Scratch work involves using a sharp needle or similar instrument to scratch or etch fine lines into the card back design. Unlike cut-out work which removes larger printed areas, scratch work creates hair-thin lines that follow or extend existing design elements. The scratches may be visible when viewed at the correct angle in the right light. This technique requires exceptional precision and skill.

Where it appears

Poker, private games

On the record

Scratch work is closely related to scroll work and cut-out work but focuses on creating fine lines rather than removing areas of print.

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.