Sassy said (28th March: "Those that caused the trouble were nowhere near the main group, because they had no interest in cuts in government spending, they were there to cause as much mayhem as possible. Most of them came via Eurostar from all over Europe, not network rail - that tells you something."
I guess you must know that Eurostar is not exactly a cheap way to cross the channel. Do you have any hard evidence? Were they waving their return tickets?
If you have any serious evidence of this then you have a duty to report it to the Met Police who I am sure will be very interested. I just don't think it's true, sorry.