When a multi-agency response goes sideways, the after-action report almost always focuses on what happened in the field. The IC who didn't establish unified command. The radio channel that was overloaded. The staging area that was too close to the incident.
What the report rarely examines is the comm center. Specifically, what happened in the first five minutes after the call came in - who got notified, what information was passed, what assumptions were made about who was handling what.
That's where multi-jurisdictional coordination actually breaks.
The BOLO that never moved
The Beltway Sniper attacks ran for three weeks across multiple jurisdictions in the DC metro area. Thirteen people were shot. The information-sharing failures between agencies are well-documented in the after-action reviews.
But the dispatch coordination failure is less discussed: comm centers were receiving and processing tips, sightings, and calls for service related to the same suspect vehicle without a reliable mechanism to push that information laterally to neighboring jurisdictions in real time. A BOLO issued by one center didn't automatically appear in the CAD of the center two counties over. The information existed. The distribution didn't.
That's not a field problem. That's a 911 interoperability problem. And it's one that still exists in most regions today.
What mutual aid actually means at the dispatch console
For a field responder, mutual aid means units from another agency show up to help. For a dispatcher, mutual aid means a completely different operational challenge: you're now coordinating resources you don't control, on channels you may not monitor, with SOPs you may not know, for an incident that's expanding faster than your information flow.
The dispatcher doesn't get a briefing when mutual aid activates. They get a radio transmission from a unit they've never heard before, using call signs that don't match their CAD, asking for resources using terminology that may not mean the same thing in their jurisdiction.
And all of this happens while they're still working their own calls.
The fix is boring and that's why nobody does it
Interoperability exercises. Not the field kind where everyone stands in a parking lot with their portable radios. The comm center kind, where dispatchers from adjacent agencies actually practice the handoff - the notification, the channel assignment, the information transfer, the resource tracking across CAD systems that don't talk to each other.
It's unglamorous work. It doesn't photograph well for the agency newsletter. But it's the work that determines whether your next multi-agency dispatch response functions or fractures.
Every comm center supervisor knows this. Almost none of them have the time or the material to train on it. So the gap persists until the incident reveals it.
Two exercises that show opposite ends of the coordination spectrum - one where it failed, one where it worked.