The Surete du Quebec has reportedly completed its investigation on the link between the construction industry and organized crime.

According to a report in La Presse, the SQ's conclusions have been sent to the force's director, and charges could be laid at any time.

The police investigations were made public in early March, and hinged on Jocelyn Dupuis, the director of FTQ-construction, and current and past members of the Hells Angels.

The news comes a day after retired Justice John Gomery urged for a probe into Mafia links to construction companies in Quebec, collusion between company bosses, and ties to municipal politics.

The retired judge said large donors wield too much influence when it comes to the awarding of municipal contracts, and that an inquiry could explore those links.

"The need of political parties for large sums of money is a problem for democratic institutions," said Gomery, a former justice of the Quebec Superior Court and is best known for the work he did while leading the inquiry on the sponsorship scandal.

The renewed call for a public inquiry comes after an explosive report last week on Radio-Canada's investigative show "Enquete," which highlighted extensive Mafia control over infrastructure spending.

The report alleged that up to 80 per cent of the road construction contracts in Montreal are controlled by the powerful Italian Mafia.

Price-fixing and collusion between about 14 companies has driven up the price of infrastructure contracts in the Montreal region 35 per cent higher than they should cost, the report said.

With files from the Canadian Press