“Active Shooter” is a phrase coined by law enforcement that describes an armed person who has used deadly physical force on persons and continues to do so while having unrestricted access to additional victims. The school shooting at Columbine and similar incidents have caused a paradigm-shift in law enforcement training and tactics. Instead of being taught to wait for a SWAT team to arrive, officers receive training on how to take immediate action during incidents that clearly involve suspects’ use of deadly force.
