Henry Porter: "The abuse of section 44 of the Terrorism Act 2000 is an established part of British life and is affecting the work of professional photographers and journalists, as well as the pleasure of amateurs. It is an outrageous infringement of an elementary liberty and it is something that we all should be concerned about, because this particular battle has symbolic significance."

Paul Lewis: "While the use of anti-terrorist stop and search powers has fallen in recent months, a succession of high-profile incidents involving the use of the legislation against photographers has embarrassed senior officers, who privately concede that the rank and file are misusing their powers on the ground."