Schools are entrusted with ensuring the safety of students and staff. One measure of the safety of America's public schools is the presence of violence on school campuses. Violent incidents include rape, sexual battery other than rape, physical attacks or fights with and without a weapon, threats of physical attack with and without a weapon, and robberies with and without a weapon. In order to provide a measure of the most severe incidents, those crimes that would be considered aggravated assaults were included as serious violent incidents. This book focuses on bomb threats, prevention and offender analyses.