The Next Nine Minutes Lessons Learned from the Large-Scale Active Shooter Training Prior to the STEM School Shooting

"The Next Nine Minutes,” a large active shooter drill, involved 904 personnel and 126 “patients” who wore “Cut Suits.” Those patients received 479 procedures (e.g., wound packs, needle decompressions, and tourniquets). Law enforcement established a “warm zone” and emergency medical services was able to extract and transport the first patient within 12 minutes. The lessons learned during this exercise were incorporated into several real-world responses, emphasizing the benefit of “in situ immersion training.”