There was an exchange in the British Parliament about protesting:

Sir Julian Lewis: I have a lot of time for the right hon. Gentleman, but I think his memory is playing him false. I also remember the Countryside Alliance protest marches, and I believe they were organised in full co-operation with the police. It was similar with most of the Campaign for Nuclear Disarmament protests on the other side of the political spectrum. We are talking here about people who act unilaterally to obstruct others from going about their lawful business. The Countryside Alliance did not do that, so far as I recall

Mr Carmichael: The right hon. Gentleman is actually correct in his recollection but also incomplete, because not all those protests were organised by the Countryside Alliance. I can remember the night when this House debated the Second Reading, and it was impossible for Members of this House to get on to the parliamentary estate because of the violence going on in Parliament Square. So if we are to take a view on the right to protest, that view must apply equally across the board to everybody, of whatever political persuasion, instead of simply, as we seem to be doing today, focusing on one aspect.

John McDonnell: The right hon. Member for New Forest East (Sir Julian Lewis) forgets that, when he was a member of the Labour party, he used to blast out very loud music at CND marches down Whitehall—he most probably would have been arrested by now.