Washington DC Police Scanner: Democracy Behind Closed Doors

September 2011: DC goes dark

In September 2011, the Metropolitan Police Department encrypted all radio. Then-Chief Cathy Lanier said criminals used scanners to evade police and that terrorists could exploit them. No evidence was offered for either claim.

WAMU and local journalists objected, arguing that scanner access was irreplaceable for breaking news and accountability reporting. The department didn't budge.

The federal agency wall

DC has more law enforcement agencies per square mile than anywhere else in the country. Nearly all of them are encrypted:

The national press: reporting without scanners

DC has the country's most concentrated press corps. The Washington Post, New York Times, AP, Reuters, and every major network bureau lost scanner access in 2011.

RTDNA has called encryption its top issue, and DC is the most consequential example of what reporters lose when a department goes fully encrypted.

DC Fire and EMS: the reversal

After the 2013 Navy Yard shooting, DC Fire and EMS moved to full encryption. The result was regional coordination problems that complicated day-to-day operations between jurisdictions.

In March 2016, the Bowser administration reversed course:

DC Fire and EMS learned what MPD has not: blanket encryption creates more operational problems than it solves. A hybrid approach can protect sensitive communications while keeping the interoperability that emergency response depends on.

DC's crime surge: encryption made no difference

DC has been encrypted since 2011. If encryption improved public safety, the city should show it. Instead, DC saw a steep crime increase in 2023:

Thirteen years of encrypted radio did nothing to prevent the 2023 crime spike. It only prevented the public from monitoring how police were responding. By 2024, violent crime started declining—due to other interventions, not encryption—but residents had lived through the surge with no independent access to information about what was happening on their streets.

The Office of Police Complaints: limited tools

DC established an independent Office of Police Complaints in 1999. Four of the five Police Complaints Board members must have no MPD affiliation. But the OPC cannot monitor police radio in real time. After an incident, it depends on:

• MPD's own after-action reports
• Citizen complaints
• Body-worn camera footage, subject to departmental release policies
• Official MPD accounts

The ACLU of DC has identified the "culture of opaqueness and resistance to transparency that permeates MPD" as a primary obstacle to accountability—pointing to FOIA denials, failures to collect required data, and refusal to follow OPC recommendations.

Protest coverage in DC

DC draws more political demonstrations than any other American city. Before 2011, journalists covering protests could monitor police positions, track crowd control tactics, document arrests, and verify or challenge what officers said happened. All of that disappeared with encryption.

When federal officers used chemical agents to clear Lafayette Square in June 2020, there was no public scanner access to document how that operation was coordinated. Journalists and the public had only what the government chose to release.

Regional interoperability: the MOU that explains the problem

The National Capital Region has a regional Interoperability Memorandum of Understanding involving cities, counties, federal agencies, and transit authorities. According to CISA's 2024 guidance, that MOU was necessary because encryption created coordination problems between jurisdictions.

The fix was more encryption—but with shared keys and common protocols. Agencies can now talk to each other. The public still cannot listen. FOIA exists, but records only become available after an incident is resolved—useless for real-time accountability.

Why DC matters nationally

What happens in the capital affects accountability everywhere

DC's encryption has consequences beyond the District:

• Every major national outlet has DC journalists—encryption affects all of them equally.
• Real-time monitoring of federal agency communications aids congressional oversight during crises.
• When DC police radio went dark, significant national events lost independent contemporaneous documentation.
• DC's approach shapes encryption decisions at federal installations in other cities.

What you can do

• Contact DC Council members — the council has direct oversight of MPD policy.
• DC residents lack full congressional representation, but your senators and representatives can push for federal agency transparency.
• Support DC outlets covering police accountability.
• Community Oversight of Surveillance DC is working on surveillance accountability citywide — connect with them.
• File FOIA requests documenting how encryption affected specific incidents.
• Advocate for a credentialing program like San Francisco's media access model as a minimum step.