In 2006, the RCMP made sweeping arrests of Mafia members and associates accused of drug-related crimes. The arrests came largely after years of intensive surveillance at Montreal's Consenza Social Club, the unofficial headquarters of Montreal's Rizutto clan.
In all, the RCMP intercepted 64,000 conversations at Consenza and shot more than 35,000 hours of video over four years as part of Project Colisée.
What was passed over during that drug investigation was the hours of interactions between mafia associates and the bosses of some of Montreal's largest construction companies.
Those conversations weren't part of the RCMP's mandate and the tapes were left unmined until the RCMP was forced to hand them over to Charbonneau commission investigators, who quickly identified several key players in the Montreal-area construction industry.
Those construction bosses, identified here, were seen on tape at the social club and became a key element of the testimony detailing a kickback scheme involving the Mafia, the construction magnates and city officials.