If you want to understand what Chicago lost when the police radios went dark, don’t start with the technology. Start with the tip.
For decades, a scanner call was the first line of a paper trail. A reporter hears a shots-fired call at a specific intersection, at a specific time, on a specific beat. That call becomes a records request: the arrest report, the 9-1-1 audio, the dashcam video, the incident narrative. The scanner didn’t produce the story. It produced the address and the timestamp that made the story findable.
That tip-generation system is gone. All 22 Chicago police district frequencies are encrypted, according to reporting by Police Magazine on the Illinois bill that would give media live access to encrypted systems. The city allows Broadcastify, a national radio-streaming service, to carry the transmissions on a 30-minute delay. That is the entire public window.
What encryption took out of the public record is not the record itself. It took out the index. The documents are still there. The question for anyone covering a ward — a block club, a zoning fight, a budget hearing, a police district — is how to rebuild the index without the live feed.
What the city said, and what the coalition said back
The official rationale came from Mayor Lori Lightfoot in December 2022, when the encryption process began. As ABC7 Chicago reported, Lightfoot said keeping transmissions unencrypted could allow criminals access to communication and put officers in danger. “It’s about officer safety,” she said. “If it’s unencrypted and there’s access, there’s no way to control criminals who are also gonna get access, listen in and adjust their criminal behavior in response to the information that’s being communicated.”
A coalition of Chicago-area news organizations, including ABC7, CBS 2, NBC 5, WGN-TV, Fox 32, the Sun-Times, the Tribune, Chicago Public Media, and Block Club Chicago, asked the mayor to reconsider. In an open letter published by ABC7, the coalition argued that the city had never identified members of the press as the disruptors, that newsrooms coordinate with officials to avoid jeopardizing investigations, and that a 30-minute delay would defeat the purpose of real-time public safety information during active events.
The city’s response, per the coalition’s account, was that both the press and the public would get access only on a 30-minute delay. The coalition also stated that the city had removed some recorded transmissions from the delayed broadcast entirely, so that certain incidents effectively vanished from the public stream.
That last point matters more than the encryption debate itself. A delayed stream that is also selectively edited is not a record. It is a highlight reel. Treat it as an incomplete index, not as evidence.
What is not established
There is a popular theory that encryption was adopted specifically to suppress FOIA requests — that if the public never hears about an incident, no one files for the paperwork. That claim appears in online radio forums and in the general suspicion of transparency advocates. It is not supported by any document or on-the-record statement in the public record. It should be reported as an assertion, not a finding, until someone produces a memo, an email, or a named official saying it.
Likewise, no retrieved source quantifies how many stories went unreported or how many incidents disappeared from public view after encryption. The honest position is that the loss is real but unmeasured. That is itself a story worth pursuing — and a reason to build the paper trail that still exists.
The records that stay public no matter what the radio does
Encryption changes how a reporter hears about an incident. It does not change what the law requires agencies to disclose. The Illinois Attorney General’s FOIA Guide for Law Enforcement (published 2017, revised July 2023) lays out the categories that remain requestable.
Arrest reports. Under Section 2.15(a) of the Freedom of Information Act, criminal justice agencies must make arrest reports public no later than 72 hours after each arrest. The required information includes the name, age, address, and photograph of the arrested person when available; the charges; the time and location of the arrest; the arresting agency; and bail or bond information if the person is incarcerated. The guide notes that the General Assembly recognized a strong public interest in arrest disclosure that outweighs the arrestee’s privacy right.
9-1-1 recordings and transcripts. The guide states that emergency call recordings and transcripts are public records that should be released, subject to redactions permitted under Section 7 of FOIA — including personal privacy, ongoing investigation, and confidential source protections.
Dashboard camera video. Dashcam recordings are public records that should be released, again subject to permitted redactions. Body camera footage follows a separate statutory procedure and is not covered by the same default.
These three categories are the backbone of incident-level accountability reporting. They existed before encryption and they exist after it. What changed is that no one is handing you the address.
How to reconstruct an incident without a live scanner
The practical method is to treat the delayed stream as a lead, not a source, and to pair it with a narrow records request. Here is a workable sequence.
1. Capture the delayed stream detail. Note the approximate time, the district, the block, and the nature of the call. The 30-minute delay means the incident is already over by the time you hear it. That is fine. You are not trying to respond to it. You are trying to identify it.
2. File a targeted request, not a category request. Ask for the arrest report for a specific date and a specific district, or the 9-1-1 audio for a specific time window and location. The Attorney General’s guide is explicit that a public body must offer a requester the opportunity to confer and narrow a request before denying it as unduly burdensome. A request that names a record and a time window is far harder to refuse than one that asks for “all incident reports from the 12th District in March.”
3. Know the fee structure. Under FOIA, no fees may be charged for the first 50 pages of black-and-white, letter- or legal-sized copies. After that, the fee may not exceed 15 cents per page. Electronic records must be produced in the format requested if feasible, and a public body may not charge for electronic copies beyond the actual cost of the recording medium.
4. Expect redactions, and challenge them specifically. The guide notes that the most common error the Public Access Counselor sees is a public body failing to explain why and how an asserted exemption applies. If you get a denial with no reasoning, that is a thread to pull. The PAC’s request-for-review process exists for exactly this.
5. Build a calendar, not a habit. The scanner rewarded reactivity. Records work rewards rhythm. A standing request schedule — arrest reports from a set of districts on a set cadence, 9-1-1 audio for any incident above a certain threshold, dashcam video for any arrest that produces charges — turns a beat into a dataset.
A hypothetical, clearly labeled
Suppose the delayed stream carries a report of a police response near a specific intersection in the 15th District at 8:40 p.m. on a Tuesday. You cannot hear the live traffic. You do not know the address.
You file a request with CPD for the arrest report for that district and that date, and a separate request for 9-1-1 audio for the same window. If an arrest was made, the report is due within 72 hours and must include the time and location. If no arrest was made, the 9-1-1 audio may still exist, and the call itself may name the block. From there, you can pull the dashcam video if a vehicle was involved, and you can check the Cook County Medical Examiner’s case list if the incident turned fatal.
None of that is as fast as hearing it live. All of it is more durable. The scanner tip was ephemeral. The FOIA response is a document you can cite, quote, and publish.
What this means for ward-level coverage
The stories that get harder without a live scanner are the ones that depend on immediacy: a police shooting, a barricade, a chase that ends on a residential block, a pattern of calls at a problem address. Those stories still exist in the records, but they surface later, and they surface only if someone asks.
The stories that get easier are the ones built on documents: contract awards, zoning variances, budget line items, service-delivery complaints. Those never depended on the scanner. They depend on the FOIA log, the committee agenda, and the address.
The Illinois bill to give newspapers and licensed broadcasters live access to encrypted systems was introduced, not passed. It is one lever. The other lever is the one that does not require legislation: file the request, name the record, and make the agency explain its redactions.
The scanner blackout removed a listening post. It did not remove the paper. The thread to pull is the FOIA log — the record of who asked for what, and what they got. That log is public. Start there.
FAQ
Can I still listen to Chicago police radio?
Only on a 30-minute delay through Broadcastify, per reporting on the city’s arrangement. All 22 district frequencies are encrypted.
Does encryption mean the records are gone?
No. Arrest reports, 9-1-1 recordings, and dashcam video remain subject to FOIA disclosure under the rules in the Attorney General’s law enforcement guide.
What if my request is denied as too broad?
The agency must first offer you a chance to narrow it. If it denies without explaining the exemption, you can file a request for review with the Public Access Counselor.
What does a FOIA request cost?
The first 50 pages of standard black-and-white copies are free. After that, no more than 15 cents per page. Electronic copies generally cost only the medium.
Did the city encrypt the radios to block FOIA requests?
That claim circulates online but is not supported by any document or on-the-record statement in the public record. The city’s stated rationale was officer safety. The effect on records access is real, but the motive is unproven.