You may also recall that there was a much-publicized incident where three agent provocateurs - rocks in hand - were identified by the protesters and promptly beat a hasty retreat behind police lines. All conveniently caught on tape.
I'm not sure how I missed this, but thanks to Rusty Idol (by way of Sketchy Thoughts), I've learned that Poli-Sci Professor Francis Dupuis-Déri has obtained SQ documents through access to information about the specifics of the operation. The Le Devoir article is here, with a really bad Google translation here (which is one reason I've decided I really need to learn French)
One of the more entertaining aspects of an otherwise depressing tale of abuse of power is this paragraph describing how the SQ might avoid such embarrassing incidents in the future:
The SQ drew from the lessons of the incident, according to the internal documents obtained by Mr. Dupuis-Déri. A report of meeting suggests “modifying the profile of the selected people so that they can function in an efficient way”. It is there question of the “size” of the agents and the absence of women in the teams of infiltration. “An allowance of the formation and information concerning the customs and habits of the demonstrators would be suitable. [It is] more difficult to melt itself in crowd with little knowledge”, the document adds.
(BTW, if you haven't seen 'Battle in Seattle' already, go rent it. An excellent primer on a seminal moment in the anti-globalization movement, and modern protest in general.)