So, it doesn't matter what you did or did not do, if you were simply there, Big Brother is coming for you?
Haven't they recently set a precedent that simply being present where 'rioting' takes place is indistinct from actually rioting? How convenient. So if you were peacefully protesting, nope, sorry, you're a rioter - now let me escort you to your cell.
I trust the sneaky, filthy bastards were there 'face mapping' everybody, matching them to images they've already registered on their system without our knowledge or consent. They will have just whipped out the good old skin shade chart, and that will have been all the consent they need. Get Whitey.
We're a police state.
What they're doing now is damage limitation ahead of the imminent and inevitable similar terror attack by an actual boat migrant. It remains to be seen if it's effective. I hope not. We continue to get Brown stabbings every day. One more extreme event should trigger another extreme reaction. It will be an interesting test of will.