I did put that question to police chief Bill Blair when he was on The Agenda. He said he had reason to believe from intelligence sources he had that there were so-called black bloc elements within that protest on Saturday night on the esplanade. That's why the protest was broken up. When I asked him to share what the source of that intelligence might be, obviously he said he couldn't tell me.
On December 6th, 2010. See this statement in context.