Why did you shoot us?” one shouted — a reference to the less lethal rounds used at last spring’s campus unrest.  Regent Jay Sures, chair of the compliance committee, showed little patience for what has become a common protest tactic.

Michael Drake, the president of the University of California, wrote a letter last month telling the system’s 10 campuses to ban encampments and regulate other protest-related conduct.

The unfolding rules are a response to last spring’s series of campus protests that led to hundreds of arrests. State lawmakers withheld $25 million from the UC until the system updated its policies.