[NWPilgrim]

Seems to me it has to be an LE medic rather than a tactical EMT. The LE agency is already prepared for the liability, insurance and training for active shooter incidents. At least the SWAT should have a combat medic equivalent. And as soon as they show up start figuring a way to secure the immediate area of a casualty and render aid and not wait for the entire crime scene to be secure. At a mall or school that could be securing one room or hallway versus an entire campus.