Officers in the region are probing reports that several women were injected with GHB at the annual Western festival.
Multiple women claim they were pricked with needles unaware during the festival.
The drug is a depressant.
State police confirm an current inquiry into these reports.
Provincial police are now reviewing the allegations made by the women who have spoken out.
The police have not given any additional details.
They have not indicated the number of victims reported the injections.
The investigation is continuing.