TACTICS
LCAN
Location, Conditions, Actions, Needs — the structured radio format that transforms chaos into coordinated action.
Command and control depends on effective communication to prevent CHAOS. In an Active Shooter / Mass Casualty Incident, the first clear radio transmission can shape the entire response. That's where LCAN comes in.
L
Location
Where are you? Be specific — building, floor, room number.
C
Conditions
What is the situation? Suspect status, victim count, active gunfire?
A
Actions
What are you doing right now? Holding position, transitioning to medical?
N
Needs
What do you need? RTF, secure corridor, additional officers?
Example Transmission
"North hallway, second floor outside room 214 (Location). One suspect down, multiple victims, no active gunfire (Conditions). Holding position and transitioning to medical (Actions). Need Rescue Task Force to my location and a secured corridor from the south entrance (Needs)."
This simple, disciplined format provides immediate situational awareness, drives command decisions, and accelerates the transition from Stop the Killing → Stop the Dying.
Just as important, communication drives the transition itself. A concise update such as "suspect down, no active gunfire" can redirect dozens of officers from searching for unknown threats to enabling medical operations — bringing in Fire/EMS, establishing casualty collection points, and moving patients toward the ambulance transfer point.
Clear communication is not a support function — it is the mechanism that enables control, coordination, and ultimately, survival.