Quebec's corruption inquiry is set to resume today after an extended holiday break.

The Charbonneau Commission broke off its hearings at the end of November following a wild fall session that saw the longtime mayors of Montreal and Laval resign in a cloud of controversy.
    

The probe has already heard testimony about how the price of public projects was inflated and the proceeds split between construction firms, political parties, city workers and the Mafia.
   

This week, the inquiry will hear from a witness who already testified back in October.

Martin Dumont, a former aide to ex-Montreal mayor Gerald Tremblay, alleged that Tremblay was aware of illegal financing within his own party.
Tremblay, who stepped down in November, has denied the allegations and called them ``completely false.''