Part III: Slot Machine Cheating · Physical Cheating Methods

SCAM #3: Counterfeit Coins and Slugs

How it works

The simplest form of slot cheating involves using counterfeit tokens or “slugs” – any object that can trick the machine’s coin acceptor. Common slugs include lead slugs, worthless foreign coins, electrical outlet box punch-outs, washers, and even pennies filed down to the size of a dime. At the high end, master counterfeiters like Louis “The Coin” Colavecchio used advanced metallurgy to create virtually indistinguishable counterfeit casino tokens. Colavecchio would forensically analyze genuine tokens to determine the exact alloy composition, then use hardened steel dies (more durable than U.S. Mint dies) to press perfect replicas of $5 and $25 tokens. His counterfeit tokens were so authentic that they passed microscopic examination by casino personnel and federal agents.

Where it appears

All coin-operated slot machines and token-based gaming devices.

On the record

Louis “The Coin” Colavecchio (1942-2020) of Warwick, Rhode Island, was arrested in 1996 at Caesars Palace Atlantic City with nearly 800 pounds of counterfeit tokens in his modified Honda. The sheer weight damaged a police transport vehicle. He was sentenced to 27 months in federal prison in 1997. After release, he resumed counterfeiting and was arrested again in 2006 and 2018 (for counterfeit $100 bills at age 76). His 2015 memoir was titled “You Thought It Was More: Adventures of the World’s Greatest Counterfeiter.” His operations are credited with accelerating the casino industry’s shift from tokens to TITO systems.

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.