Jacques Dupuis, seen here with Quebec Premier Jean Charest and Justice Minister Kathleen Weil, is expected to announce he's leaving politics. ((CBC))

Quebec's Public Security Minister Jacques Dupuis is set to leave politics, according to the French-language daily  La Presse.

The Montreal newspaper says Dupuis, 61, told Premier Jean Charest last week that he's leaving politics, and could officially announce his departure as early as Monday.

The report says that Dupuis will not return to the national assembly after his vacation, and will be taking a job with a prominent Montreal law firm in the fall.

Dupuis is the House Leader at the national assembly, and began his political career in 1998 when he served as the Liberal critic for public security.

Last May, Dupuis denied allegations that he helped the head of a security company – the Canadian Bureau of Investigations and Adjustments (CBIA) – to obtain a licence to carry a gun.

Dupuis had met with the head of the company, Luigi Coretti, who has also donated thousands of dollars to the Liberal party.

CBIA is also the firm that gave former Family Minister Tony Tomassi a credit card, which prompted his resignation from cabinet.