Officers in Saint-Tite, Quebec are looking into claims that several women were drugged with GHB at the Festival Western de Saint-Tite.
Multiple women report they were pricked with needles without their knowledge during the gathering.
The drug is a sedative.
State police have confirmed an current inquiry into these reports.
Officers are now assessing the claims made by the women who have spoken out.
The officers have declined to give any further update.
They have not said how many women reported the needle pricks.
The investigation is continuing.