Sheriff's Office Fully Encrypted
St. Clair County Sheriff
St. Clair, Illinois
Encryption Details
Encryption Type P25 AES-256
Scope Sheriff Investigations Talkgroups
Technical Details P25 AES-256
Verified Talkgroup Data
Verified Jan 2, 2026 Moderate confidence
34 Total Talkgroups
8 Encrypted
1 Mixed
25 Unencrypted
25% Encrypted
Radio System: AmerenMissouri (P25), Joint National Capital Region, Warner Communications-BJC Hospitals (NXDN), Warner Communications (DMR 13), Southwestern Illinois Digital Group WS9IDG, First Student - St. Louis (LTR), Missouri BrandMeister DMR
View 9 talkgroups
| DEC | Alpha Tag | Description | Status |
|---|---|---|---|
| 1671 | NGA STL 71 | Operations (St Louis) 71 | Encrypted |
| 1685 | NGA STL 1685 | Operations (St Louis) 1685 | Mixed |
| 1693 | NGA STL 1693 | Operations (St Louis) 1693 | Encrypted |
| 1684 | NGA STL 1684 | Operations (St Louis) 1684 | Encrypted |
| 1648 | NGA STL 1648 | Operations (St Louis) 1648 | Encrypted |
| 1689 | NGA STL 1689 | Operations (St Louis) 1689 | Encrypted |
| 1646 | NGA STL 1646-T | Operations (St Louis) 1646-T | Encrypted |
| 1687 | NGA STL 1687 | Operations (St Louis) 1687 | Encrypted |
| 58636 | NGA STL 58636 | Operations (St Louis) 58636 | Encrypted |
What This Means
This agency encrypts all of their radio communications, including routine dispatch. The public, journalists, and even other first responders cannot monitor their activities.
Impact on Transparency
- Journalists cannot monitor police activity for breaking news or investigative reporting
- Community members cannot track police response to incidents in their neighborhood
- Researchers cannot study police communication patterns and response times
- Other first responders may face interoperability challenges during emergencies
Take Action
Want to help restore transparency to St. Clair County? Here's how you can make a difference: