A preliminary hearing is set for early 2015 in the case of former SNC Lavalin CEO Pierre Duhaime, who was arrested in 2011tktk on charges of fraud, conspiracy to commit fraud, and using forged documents. He is accused of authorizing improper payments of $22.5 million to secure a $1.3-billion contract to build a super-hospital in Montreal. Canadian officials believe the case involves the largest fraud investigation in the country's history.

The commission's final testimony was from former Montreal construction magnate Tony Accurso, who said he had given $250,000 to a former police chief who lost a bid for city mayor.  

However, several other high-profile politicians were conspicuously absent from the proceedings, for which the commission indeed has been widely criticized, says ACEC.  

“These are the guys with the golden keys,” Gamble says. “So you have to look at them too—the demand side. The corruption is not entirely on the supply side. You can’t fix the problem only looking at one side of the equation.”