Montreal's police union says it wants the Surete du Quebec to investigate the anti-pension reform protest during a city council meeting at City Hall on Aug. 18.
The investigation into the incident is currently being handled by Montreal police, but union president Yves Francoeur says comments from executive committe vice-chair Anie Samson about possible consequences coming to those who took part amount to political interference.
Samson told La Presse that the workers who stormed the meeting would be fired, and may also face criminal charges.
A number of police officers were among the close to 100 protesters who took part in the demonstration, during which four security guards suffered injuries. Aside from disrupting the meeting, the demonstrations threw paper around and splashed water on computers.