San Francisco Police Scanner Deep Dive: The Tech Capital Chose Secrecy Over Transparency
San Francisco, the city that prides itself on transparency, open government, and tech innovation, made a historic choice in December 2021: encrypt all police radio communications for the first time since implementing radio technology in the early 20th century. The city's unique media access program offers a compromise that other departments have rejected, but critics say it creates dangerous gatekeeping.
The Encryption Timeline
For nearly a century, San Francisco Police Department radio communications were accessible to the public. That changed abruptly in late 2021.
California DOJ Bulletin
The California Department of Justice issues a bulletin instructing law enforcement agencies to encrypt their radio transmissions to protect personally identifiable information (PII). Internal emails later revealed SFPD staff asking DOJ whether the Police Chief could opt out.
Internal Debate
Gene Ashton, senior radio communications technician for San Francisco, emailed the California DOJ after hearing the police chief might not want to move forward with encryption, asking if SFPD would face compliance issues.
Full Encryption
SFPD encrypts practically all radio transmissions. It marks the first time in over 100 years that San Francisco police communications are blocked from public access.
Media Access Program
SFPD implements a media credentialing system, providing encrypted receivers to approved journalists. Fire and non-police emergency services remain partially accessible.
San Francisco's Media Access Program: A Model or Gatekeeping?
Unlike departments that locked everyone out completely (like Los Angeles), San Francisco created a middle path. But this compromise comes with significant concerns.
How the Program Works
What It Offers
- Credentialed journalists receive encrypted radio receivers
- Real-time access (no 30-minute delays like Chicago)
- Coverage for major news organizations
- Recognition that media needs scanner access
Critical Concerns
- SFPD decides who is "media" - potential exclusion of bloggers, independent journalists, or critical outlets
- Self-censorship risk - journalists may moderate coverage to protect access
- Ordinary residents blocked - can't track crime in their neighborhoods in real-time
- Researchers excluded - academics studying police activity lose access
- No appeals process - if denied credentials, limited recourse
Even if these gatekeeping powers aren't actively abused, their existence creates a chilling effect. The program ultimately puts police in control of who gets to monitor police.
The Tech Industry Context
San Francisco's encryption decision exists within a unique ecosystem: the global capital of technology and innovation, home to companies that champion transparency in their own operations while enabling surveillance capabilities for governments worldwide.
The Transparency Paradox
Tech companies headquartered in San Francisco advocate for open data, transparency reports, and user privacy, yet the city's police force has closed off one of the most basic forms of public oversight.
Tech Funding of Surveillance
SFPD's Real-Time Investigation Center (RTIC) was partially funded by tech industry donations, including from the San Francisco Police Community Foundation, supported by figures like Ripple CEO Chris Larsen and Michael Moritz of Crankstart.
Surveillance Tech Partners
Technology partners for SFPD's crime-fighting efforts include Flock Safety, Skydio (drones), Peregrine, Safe City Connect, and Constant Technologies. This high-tech policing occurs while basic radio transparency is eliminated.
Civic Tech Movement
Silicon Valley civic-tech companies have driven transparency in local government nationwide, yet San Francisco itself has moved backward on police accountability tools.
2020 Protests: SFPD Illegally Surveilled Demonstrators
While encryption debates focused on "privacy" and "safety," SFPD's actions during the George Floyd protests revealed a department willing to bypass privacy rules when convenient.
The ACLU of Northern California and Electronic Frontier Foundation filed a lawsuit alleging SFPD commandeered the Union Square Business Improvement District's network of over 300 cameras from May 31 through June 7, 2020, to spy on Black Lives Matter protesters without obtaining required Board of Supervisors permission.
San Francisco's ordinance requires police to get Board approval before acquiring or borrowing surveillance technology. SFPD obtained no such permission before monitoring the camera network.
The Irony: SFPD claims encryption protects "privacy," yet illegally surveilled thousands of protesters exercising their First Amendment rights. The department's privacy arguments appear selective at best.
Protest Coverage History
San Francisco has been a center of protest activity for decades, from civil rights demonstrations to anti-war movements to tech industry labor organizing. Open scanner access historically allowed:
- Independent documentation of police tactics during demonstrations
- Real-time safety information for protesters about police movements
- Accountability when official accounts differed from actual communications
- Media coverage that didn't depend solely on police press releases
Following the 2020 George Floyd protests across the Bay Area, Oakland and other departments accelerated encryption, with journalists noting their inability to cover police response to demonstrations. San Francisco's encryption fits this broader pattern.
Current Access Options
For those seeking any form of police radio access in San Francisco, options are extremely limited:
Bay Area Regional Context
San Francisco's encryption exists within a broader Bay Area landscape that's more varied than the fully-encrypted Southern California region.
| Agency | Status | Notes |
|---|---|---|
| San Francisco PD | Encrypted (Media Access) | Credentialed journalists only |
| Oakland PD | Encrypted | No media access program |
| Berkeley PD | Encrypted | Council voted 8-1 for encryption |
| Palo Alto PD | Reversed to Open | Community pressure restored access |
| San Jose PD | Encrypted | Encrypted day before COVID lockdowns |
| Alameda County Sheriff | Encrypted | Part of East Bay regional encryption |
The Palo Alto reversal stands as proof that community pressure can restore transparency. Their 20-month campaign offers a playbook for San Francisco residents who want to challenge SFPD encryption.
What's At Stake
San Francisco faces unique challenges that make police radio transparency especially important:
Tourism and Public Safety
Millions of visitors rely on real-time safety information. During emergencies, tourists without local knowledge are most vulnerable to information blackouts.
Homelessness Crisis
Police interactions with homeless populations are a major accountability issue. Encryption removes public oversight of these encounters.
Tech Industry Protests
Labor organizing, AI ethics protests, and tech company demonstrations occur regularly. Encryption limits documentation of police response.
Earthquake Preparedness
In a major earthquake, real-time police communications would be critical for public safety. Current systems leave residents dependent on delayed official channels.
What You Can Do
If you're a San Francisco resident or journalist concerned about SFPD encryption:
- Contact your Supervisor: San Francisco Board of Supervisors has oversight authority over police policies
- Support SB 719: California legislation that would require media access to encrypted police radio statewide
- Apply for media credentials: If you're a journalist, test the system and document any barriers
- File public records requests: Ask for documentation of the media credentialing process and any denials
- Join advocacy groups: The Electronic Frontier Foundation, ACLU of Northern California, and California News Publishers Association are working on these issues
- Share the Palo Alto playbook: Demonstrate that reversal is possible with sustained community pressure
Take Action for Transparency
Your voice matters. Here are concrete ways to advocate for open police communications in your community.
Contact Your Representatives
Use our templates to email your local officials about police radio encryption policies.
Get StartedRead Case Studies
See how encryption has affected real communities - from Highland Park to Chicago.
View CasesSpread Awareness
Share evidence about police radio encryption with your network and community.
Public Testimony
Learn how to speak effectively at city council and public safety meetings.
Prepare to SpeakRelated Resources
Sources & Further Reading
- BuzzFeed News: "The San Francisco Police Department Has Encrypted Its Radio Feeds"
- Palo Alto Daily Post: "San Francisco finds an alternative to full encryption of police radios"
- Electronic Frontier Foundation: "San Francisco Police Illegally Used Surveillance Cameras at the George Floyd Protests"
- ACLU of Northern California: "Activists Sue San Francisco for Wide-Ranging Surveillance"
- SF Standard: "SFPD plants high-tech crime-fighting hub downtown"
- Reporters Committee for Freedom of the Press: "Trend toward local police radio encryption grows"