Police arrested more than 200 people for allegedly voicing support for the banned group Palestine Action on Saturday. The arrests began shortly after hundreds had gathered in Trafalgar Square to protest against the ban, with those held aged from 27 to 82. Around 100 police officers moved into the large crowd in pairs after gathering in formation at the base of Nelson’s Column. At one stage, several police officers carried a woman out of the crowd as people chanted “shame on you”. Police then lifted a man out in handcuffs and walked an elderly protester with a walking stick to...