People do have a right to protest but do not have the right to riot and commit violence against animals or people. Acid was thrown at police as well as other projectiles like rocks, fires were lit. There should be some boundaries with time limits, where the protest will be held. Frequency of protests. Emergency vehicles and personnel should not be obstructed as well as the general public. How about the protestors sharing the love by protesting at the Iranian, Chinese and Russian embassies. They are the most prolific arms dealers in the world arming many terrorists groups in the world.