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- How to Use the ASIM Checklist: Radio Traffic Walkthrough Demo
Webinars & Video Training
July 30, 2019 • 10 min read
How to Use the ASIM Checklist: Radio Traffic Walkthrough Demo
This video is a step‑by‑step explainer of the Active Shooter Incident Management (ASIM) Checklist using real‑style radio traffic from a fictional school shooting scenario. As the incident unfolds over the radio, an on‑screen animation shows each ASIM Checklist box being activated in sequence, from the first dispatch call through contact, command, triage, treatment, transport, and hospital notifications. The demo lets viewers “see” how the checklist is supposed to run in real time: who takes command, how law enforcement, fire, EMS, and dispatch coordinate, how hot/warm zones are identified, and how patient movement and hospital capacity are managed. Blue text represents law enforcement radio traffic; red text represents fire/EMS traffic. The goal is to give first responders and leaders a clear mental model of how to use the ASIM Checklist during an actual incident, without using real events or live operations.
Transcript
Squad C, all units, receiving shots fired at Wildwood Middle High School. On 700 Huey Street, possible active shooter, white male. 15 to 17 year old, black jacket, dark jeans, arms with a handgun and shotgun. Last seen in that office, headed towards the cafeteria. Chief 100, engine one, engine two, ambulance one, respond. Wildwood Middle School, 700 Huey Street, possible active shooter, white male, 15 to 17 year old. Black jackets, dark jeans, armed with a handgun and a shotgun last seen in the office headed towards the cafeteria. Law enforcement responding. Scene is not secure. We hear gunshots. Entire campus is a hot zone. Patrol 101 has command and we are in contact one making entry through the front. Contact one has command entering the front of the school. Entire campus is a hot zone. It's three down near the front. It's three down in the front office, two down in the hallway. Students running from the cafeteria. But we do not hear any other gun. Ten down in the cafeteria. Tactical has command. We're facing at Huey Street and South Old Wire Road. Approximately 15 injured. Tactical has command and is in the north parking lot. We'll advise when command post establish an MCI level two. We'll advise you to move up to tactical's location. Approximately 15 injured. Post at Huey Street and Hazel Street, notify fire EMS. Chief 100 from dispatch, police supervisor has set up command post at Huey and Hazel Street. Enforcement in... Command post assumes medical branch. Report, keep threshold at two engines and two more RTFs. Red, three green. Warm zones, suspect. Red, three greens, setting KF1 and RKF2 are moving up all the way to the cafeteria seats. I have six now and will load our additional. Black tags, three red, two yellow, three greens, ready to move. Working on AAP at the cafeteria delivery area. Delivery area west of the building. One ambulance lining up others. From dispatch, we have hospital capacity counts if you're ready to call in. Go to the trauma center, one red, one yellow, one green.
Frequently Asked Questions
This video is an instructional demo that shows how to use the ASIM Checklist during an active shooter incident. It syncs example radio traffic from a fictional school scenario with animated checklist steps so viewers can see how command, zones, triage, transport, and hospital coordination progress in near real time (edited for length and to eliminate radio overlap).
No. The scenario is completely fictional and was created for training purposes. The radio traffic is edited from an ASIM Advanced class exercise to remove overlap between law enforcement and fire/EMS transmissions and to keep the example clear and concise.
In the video, blue text (Blue LE) represents law enforcement radio traffic and red text (Red FD) represents fire/EMS radio traffic. This color‑coding makes it easier to follow which discipline is talking and how each fits into the ASIM Checklist sequence.
The video is designed for law enforcement, fire, EMS, dispatch/911, and command staff who use or are considering using the ASIM Checklist. It is also useful for trainers and leaders who want a clear visual example of how the checklist runs during an active shooter or mass‑casualty incident.
Agencies can use the demo as a pre‑brief or classroom explainer before running their own ASIM tabletop, virtual, or live exercises. Watching the checklist progression with radio traffic first helps responders visualize roles, handoffs, and benchmarks so that later scenario training reps are more focused and effective.
Written By
C
C3/NCIER Studios
Creative Team
C3/NCIER Studios produces and edits creative content for C3 Pathways and NCIER.
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