Boisclair filed libel proceedings in the fall of 2013 against the Coalition for Quebec's Future, leader Francois Legault and Jacques Duchesneau, who was then a member of the legislature.
He was seeking $200,000 in damages.
The Coalition said in a news release today that an out-of-court settlement has been reached with Boisclair. Terms were not released.
Duchesneau says he recognizes the remarks he made in September 2013 as the party's public security spokesman may have led to conclusions that were inaccurate and unfounded, therefore harming Boisclair's reputation.
The former Montreal police director says he apologizes for any harm done to Boisclair, while Legault also says he regrets any prejudice caused to the former PQ leader.
Boisclair became PQ leader in 2005 and admitted that year to having used cocaine while he was in cabinet. He left politics after losing the 2007 election.
A former construction boss alleged during Quebec's corruption inquiry that Boisclair authorized a $2.5-million subsidy in 2003 involving a company that had ties to the Hells Angels.
That led Duchesneau to wonder aloud whether there was a possible connection between Boisclair's past drug use and the granting of the subsidy just before a provincial election won by the Liberals.
Boisclair was PQ municipal affairs minister at the time.
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