Part II: Table Game Cheating · Roulette Cheating Methods

Scam #17: Lead Bottoms / Weighted Pockets

How it works

This method involves physically modifying the roulette wheel to create bias toward or away from specific numbers. The perpetrators construct molds shaped like the areas between the wheel’s frets (the numbered pockets). They then melt lead and pour it into these molds, creating weighted inserts that are placed under the wheel head between the chrome frets. The added weight makes certain sections of the wheel heavier, causing the wheel to settle with the weighted section slightly lower. Since the ball is more likely to come to rest in pockets that are physically lower (due to gravity), the weighted numbers hit more frequently. Alternatively, the cheaters may add weight to the OPPOSITE side of their betting numbers, causing the wheel to tilt away from heavily-bet areas and toward their target numbers. This modification requires inside access to the wheel, typically through a dishonest maintenance worker, dealer, or manager.

Where it appears

Physical roulette wheels; requires access to wheel internals

On the record

This technique was documented in the book “Stealing Las Vegas” which described a group that used lead molds to create weighted inserts for roulette wheels. The author noted that two magnetic balls on separate tables in the same casino once stuck together when the casino moved them, exposing the scam.

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.