Police Department Partially Encrypted

Des Peres Police

St. Louis, Missouri

What you can do right now

Encryption Details

Encryption Type P25 ADP
Scope Some talkgroups encrypted (7.1% per RadioReference data); others remain in the clear.
Technical Details P25 ADP

Verified Talkgroup Data

Verified Mar 6, 2026 Moderate confidence
14 Total Talkgroups
1 Encrypted
13 Unencrypted
7% Encrypted
Radio System: St. Louis Area Trunked Emergency Radio (SLATER), Joint National Capital Region
View 1 talkgroup
DEC Alpha Tag Description Status
55325 DesPeres Police Police: Dispatch Encrypted

Verification Status

We do have per-talkgroup data for Des Peres 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 Des Peres 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) / Joint National Capital Region as shared infrastructure: 1 agencies, Des Peres Police included, ride the same system and inherit the same encryption status rather than each having made a separate call.

St. Louis County Context

Des Peres 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 Des Peres Police radio encrypted?

Our database lists Des Peres 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 Des Peres Police on a police scanner?

Possibly. Our database lists Des Peres 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 Des Peres Police encrypt their radio?

Agencies cite officer safety and operational security. Those are assertions rather than findings — no local evidence is typically produced — while the effects are concrete and land straight away on anyone who relied on hearing Des Peres Police to know what was happening nearby.

Can St. Louis County reverse the encryption decision?

It can. The radios support open and encrypted operation equally well, so this is a configuration and a policy, not a constraint — and policies set by St. Louis County officials are policies those officials can revisit when constituents press for it.

What can I do about Des Peres Police encryption?

File a FOIA request for Des Peres 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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