911 on a college or district phone. If a college/district phone is not available, use any available phone and dial District Central Dispatch at
All intervention in criminal activity is the responsibility and duty of district police officers and local law enforcement.
No uniform policy can make determinations for all circumstances that may arise. Evacuating may be the best decision in one set of circumstances, while getting behind a locked and/or barricaded door may be more effective in another set of circumstances.