Despite a University of California lawyer’s warning of “mob rule on campus,” a federal appeals court seemed inclined Wednesday to allow UC Berkeley protesters to take school administrators to trial for allegedly sanctioning police brutality to break up a 2011 demonstration. At the time of the “Occupy Cal” protest, “it was clearly established that (police) cannot use potentially deadly force” to overcome resistance, Judge Paul Watford said at a hearing of the Ninth U.S.