 In July 2009, Robertson led the Vancouver City Council to pass several bylaw changes—including security checkpoints, closed-circuit cameras, prohibition of "disturbance or nuisance interfering with the enjoyment of entertainment on city land by other persons", and prohibition of commercial flyers at celebration sites—which were controversial for some civil liberties advocates who argued that they "make it more difficult to exercise [the] fundamental constitutional rights to free speech, peaceful assembly and free expression.