I am uneasy and unwilling to support protest bans, even if I find the motive behind some dubious at best. Many attending do so in the right reasons and we should have legalised protests even if we disagree. Keep protests away from sensitive areas, like the Cenotaph, have a high police presence, but banning is a huge no.
On this, Hugo Rifkind has a good article today, which I solidly agree with: