Victims of a massive investment fraud that operated for years out of Montreal and siphoned half a billion dollars offshore are calling on federal politicians to resume an inquiry into Canadian shell companies set up in the Isle of Man.

KPMG is disputing confidential emails from a leak of offshore financial data that show the Canadian accounting and auditing firm helped set up four shell companies in the Isle of Man that experts believe were later involved with a massive investor fraud that ran for years out of Montreal.

A disgraced Montreal TV executive convicted of fraud is facing allegations from the Canada Revenue Agency that he filed false tax returns and hid assets worth millions in offshore accounts in Bermuda and other foreign locations.