Chicago Police Department
Cook, Illinois
Encryption Details
Verified Talkgroup Data
View 10 talkgroups
| DEC | Alpha Tag | Description | Status |
|---|---|---|---|
| 5091 | CPD Marine Unit | Marine Unit: Car-to-Car | Mixed |
| 5081 | CPD SWAT 5081 | SWAT 81? | Mixed |
| 5411 | CPD Event 1 | Event 1 | Mixed |
| 7001 | CPD Command 1 | Command 1 | Encrypted |
| 5412 | CPD Event 2 | Event 2 (Dispatch in the clear) | Mixed |
| 5413 | CPD Event 3 | Event 3 | Mixed |
| 5130 | CPD Citywide 85 | Citywide 85 | Encrypted |
| 7014 | CPD Ops 7014 | Police: Operations | Mixed |
| 7015 | CPD Ops 7015 | Police: Operations | Mixed |
| 7016 | CPD Ops 7016 | Police: Operations | Mixed |
Verification Status
We do have per-talkgroup data for Chicago Police Department 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 Chicago Police Department 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.
Cook County Context
Chicago Police Department isn't an outlier here: 14 of the 19 public-safety agencies we track in Cook County are fully encrypted (74%), so most departments nearby have made the same move.
See every agency we track in Cook County → County encryption overview →
What This Means
This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.
Frequently Asked Questions
Is Chicago Police Department radio encrypted?
Chicago Police Department is listed in our records with P25 AES encryption — a listing we haven't yet verified against live talkgroup data. This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.
Can I listen to Chicago Police Department on a police scanner?
Possibly. Our database lists Chicago Police Department 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 Chicago Police Department encrypt their radio?
Ask why, and the answer is usually officer safety, sometimes operational security. What is harder to obtain is any documented case in Cook County where an open channel caused harm. The costs need no such documentation: reporting on police department response slows down, and mutual-aid coordination gets more awkward, immediately.
Can Cook County reverse the encryption decision?
Yes, and some departments already have. Because encryption here is a choice rather than a technical necessity, the path back runs through the same people who chose it: budget hearings, records requests, and residents who keep asking in public.
What can I do about Chicago Police Department encryption?
Ask for the paperwork first — the policy that authorised encryption for Chicago Police Department, and the recordings themselves — because a specific request is harder to wave away than a general complaint. Then take what you learn to a council meeting, and bring others from Cook County with you.