IN AN EMERGENCY, DIAL 911.
If you see a person with a weapon on campus, immediately call 911 or 510-642-3333 via a cell phone.
From the University of California Police Department (UCPD): "We all hope it never happens, but the campus community must recognize the potential for an active shooter or other active deadly threat to occur. UCPD Berkeley’s highest priorities include the prevention of and preparation for events involving targeted violence. Statistically, the chance for any individual to ever experience such a situation is low, but we ask everyone to be aware of warning signs, to be alert to their surroundings, and to contact the police or reach out to other appropriate resources when a concern exists."