Field guide
Magnetic Ball / Wheel Interference
How it works
Using magnets to influence roulette ball or dice outcomes. Requires either a magnetic ball or concealed electromagnets under the table/wheel. Cheaters substitute a ball containing a small steel core or magnet. Accomplices activate electromagnets under the wheelhead or table to influence the ball’s landing zone. Alternatively, magnetic dice work with table-mounted electromagnets.
On the record
Magnetic roulette cheating has been reported more than once, including a 2003 magnetic-ball scheme and a 2022 conviction for magnet manipulation of roulette wheels. It is not established that modern equipment has made the method largely obsolete.
Detection & preventionADVISORY
The paid halfHow a monitoring room catches magnetic ball / wheel interference, and what stops it recurring, written for the desk, not the reader.
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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.