Police Department Partially Encrypted

Frontenac Police

St. Louis, Missouri

What you can do right now

Encryption Details

Encryption Type P25 ADP
Scope Some talkgroups encrypted (13.3% per RadioReference data); others remain in the clear.
Technical Details P25 ADP

Verified Talkgroup Data

Verified Mar 6, 2026 Moderate confidence
15 Total Talkgroups
2 Encrypted
13 Unencrypted
13% Encrypted
Radio System: St. Louis Area Trunked Emergency Radio (SLATER)
View 2 talkgroups
DEC Alpha Tag Description Status
55653 Frnt Police Sppt Frontenac Police: Support Encrypted
55415 WCDC Front PD Frontenac Police: Dispatch Encrypted

Verification Status

We do have per-talkgroup data for Frontenac Police from the RadioReference API, and used it to set the encryption scope shown above — but no additional human-reviewed source (a live feed check or a dated news account) has been recorded for this record, so treat it as a data-quality correction rather than an independently confirmed verification. Check the live RadioReference database directly for current status.

If you monitor Frontenac Police directly or have more current information, the fastest way to fix this is to update the RadioReference Wiki entry — our data pulls from there and from the RadioReference API on a regular refresh cycle.

Shared Radio System

St. Louis County, Missouri runs St. Louis Area Trunked Emergency Radio (SLATER) as shared infrastructure: 1 agencies, Frontenac Police included, ride the same system and inherit the same encryption status rather than each having made a separate call.

St. Louis County Context

Frontenac Police isn't an outlier here: 25 of the 32 public-safety agencies we track in St. Louis County are fully encrypted (78%), so most departments nearby have made the same move.

What This Means

Our records list a mix here: some talkgroups encrypted, others not. The listing is unverified, so confirm what is audible at RadioReference.

See encryption status nationwide Interactive map showing which US police departments have encrypted their radios. Open the encryption map →

Frequently Asked Questions

Is Frontenac Police radio encrypted?

Our database lists Frontenac Police as using P25 ADP encryption, though this listing is unverified. Our records list a mix here: some talkgroups encrypted, others not. The listing is unverified, so confirm what is audible at RadioReference.

Can I listen to Frontenac Police on a police scanner?

Possibly. Our database lists Frontenac Police as encrypting some of its talkgroups while leaving others open, which would leave some channels accessible. The listing is unverified — check RadioReference for specific talkgroup status.

Why do agencies like Frontenac Police encrypt their radio?

The reasons offered are almost always the same two: officer safety and operational security. Whether either was tested against a real St. Louis County incident is rarely part of the public record, whereas the consequences are easy to observe — no real-time accountability, and neighbouring agencies still in the clear left working around the gap.

Can St. Louis County reverse the encryption decision?

Nothing technical prevents it. Frontenac Police operates encrypted because someone decided it should, and decisions of that kind get revisited when councils hear sustained, organised pressure rather than isolated complaints.

What can I do about Frontenac Police encryption?

File a FOIA request for Frontenac Police's radio recordings and encryption-decision paperwork, then show up to speak at a council or commission meeting. Find other residents or journalists in St. Louis County who want the same access — state legislation requiring public radio access is the longer-term fix, but organized local pressure is what usually moves the needle first.

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