Director of Public Safety Gerald O'Neil said four officers sustained injuries ranging from a bite wound to a separated shoulder.

Conservative Backlash

In response to the anti-brutality, anti-CIA rally, conservative students scheduled their own rally at the same time and place. Ashwell said the crowd of 400 appeared evenly split between pro-and anti-CIA protesters.

Singing "God Bless America," CIA supporters drowned the chants of protesters yelling "CIA, USA, out of Nicaragua."

The spy agency's supporters stood before CIA protesters holding an American flag as the protesters marched to administration offices. The supporters then blocked the building's doors to guard against another occupation.

The conservative students returned to the student union and filed into the radical group's office, making a point of allowing anyone to enter. There were no arrests and no reports of violence, police said.

Chancellor Joseph Duffey announced shortly after the rally that political science Professor Dean Alfange would review the school's policy on campus recruitment with a committee of students and other faculty members.

Duffey said an educational forum with speakers from both sides of the CIA recruitment issue would be held on campus within the next few weeks and that he would meet with members of the Stop CIA Recruitment Organizing Committee on December 15.

"This is not in response to the group's demands, but is part of the adminstration's look at the issue," said Jeanne Hopkins Stover, another university spokesman.