The fifth arriving law enforcement officer (aka 5th Man) generally assumes the Tactical Group Supervisor position at a chosen location close to but outside the affected building. The Tactical Group Supervisor is responsible for security in the Hot and Warm Zones and responder movement into, out of, and within the Hot Zone and Warm Zone. The Tactical Group Supervisor works alongside the Triage Group Supervisor and the Transport Group Supervisor, with all operating face-to-face at the same location.
Often called the "Fifth Man" (5th Man).