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See who’s on the net. Press once and reach every officer in your area, instantly.
OnSiren is a shared intelligence platform that brings frontline officers, business and law enforcement into a single coordinated platform.
It links the people, places and systems that keep communities safe, turning fragmented operations into shared situational awareness.
Suspicious Activity
Two males on one moped, been past me twice in ten minutes — plate’s covered. Slowed right outside the front entrance, then rode off down Victoria Street. Keep eyes out if they come your way.
SIERRA52
9 OFFICERS
Advisory
Two males on one moped, plate obscured, reported circling the Westminster area. Keep your distance. Report further sightings.
Active · Westminster zone
See who’s on the net. Press once and reach every officer in your area, instantly.

Speak it once. It’s transcribed automatically and every nearby officer has it in seconds.

It briefs you before the shift: the threat level, your zone, what’s happened around you.
Every incident reported by SIA-licensed officers in your borough feeds your dashboard directly. Eyes on the ground, from a missing child to a suspect package.


Broadcast advice and be-on-the-lookout notices to the zones you choose. Zone-targeted, with a set lifetime. Police never raise emergency alerts.

The live picture of your borough, from any browser. Every zone, every incident, and the officers on the ground. Your own units are never shown on the map.
One message to everyone. Lockdown, evacuation, all-clear, in seconds.


Your channels don’t stand alone. Receive intelligence from the SIA-licensed officers working around your venue, and advisories issued for your area.
Create as many channels as you need. Who can speak and who can hear is up to you. All your chatter stays inside your channels.
Be among the first officers on the network in your area. Reserve your call sign and we’ll have it waiting the moment your city goes live.
Use the arrows or search to browse call signs. Use this same phone number when you sign up to the OnSiren app.