If Premier Jean Charest fails to open an inquiry into the links between the Quebec Liberal Party and the construction industry, Pauline Marois said, if elected, she will to it instead.

The Parti Quebecois leader made that pledge in her opening address to hundreds of party activists at a weekend conference in Drummondville Saturday.

The PQ leader kept focus on what she calls the many threats to the integrity of the Quebec government.

Marois said an inquiry was the best way to rebuild trust between the public and its elected officials, adding that Charest's failure to do so meant the public could no long count on him.

The numerous allegations of favouritism and collusion in recent months have cost the government its legitimacy, said Marois.

Marois said if the PQ were to win control of the government, it would commit to adopting a series of measures and adjustments, including overseeing the system of financing political parties, tightening ethics rules for elected officials, appointing an independent ethics commissioner and watching over the system of appointing judges in the province.

Marois told supporters that one day light would be shed on the relationship between the granting of government contracts and funding for the Liberals.

The weekend conference in Drummondville was organized to discuss the party's social policies, prior to adopting a new party platform for the next election.

This is the third and final workshop of its kind. The first two focused on language and economy.

With files from The Canadian Press