LAPD Encryption Deep Dive: How America's Second-Largest City Went Completely Dark
In 2019, the Los Angeles Police Department completed full encryption of all radio traffic, becoming the largest city department in the United States to go completely dark. With a population of nearly 4 million people, a radio infrastructure investment exceeding $350 million, and a media ecosystem that spans global entertainment, LAPD's decision reshaped American journalism and set the template for nationwide encryption.
LAPD by the Numbers: The Largest Encrypted Department
The Encryption Timeline
Los Angeles has a complex history of police radio technology, transitioning from open analog to encrypted digital across decades of infrastructure investment.
$235 Million Bond Measure
Los Angeles voters approve a $235 million bond to build two new dispatch centers (metropolitan and San Fernando Valley) and replace the aging Master Radio System.
Digital Transition Begins
After the Lakers NBA championship parade, LAPD switches from analog to digital frequencies. Public monitoring via standard analog scanners ends, though digital scanners could still access communications.
California Highway Patrol Goes Encrypted
CHP's statewide encryption sets the tone for California law enforcement, demonstrating that even massive state-level agencies would pursue full encryption.
LAPD Full Encryption
LAPD completes full encryption of all radio traffic, becoming the largest city department in the US to encrypt. Media and community groups protest but fail to stop the rollout.
Regional Cascade
LA County Sheriff, Long Beach, and most surrounding departments follow LAPD into full encryption. Greater Los Angeles becomes one of the most encrypted regions in the country.
The $350 Million+ Radio Infrastructure
Los Angeles has invested more in police radio infrastructure than many cities spend on entire public safety budgets. This massive investment was used to justify encryption as "protecting the investment."
1992 Bond: $235 Million
Two new dispatch centers and Master Radio System replacement. Approved by voters who had no idea it would later enable complete communication blackouts.
LA-RICS Federal Grant: $117 Million
U.S. Department of Commerce funded the bulk of the broadband network for regional interoperability. Intended to improve coordination, not hide communications from the public.
Ongoing Infrastructure
Additional millions spent on 63 fixed broadband towers, 15 portable units, and private voice radio network serving 34,000 personnel across 88 cities.
The Investment Irony
Taxpayers funded this infrastructure with bonds and federal grants intended to improve public safety coordination. That investment is now used to block the same public from monitoring how their tax dollars are spent and how police operate.
Impact on Hollywood and Entertainment Media
Los Angeles isn't just America's second-largest city, it's the global capital of entertainment media. LAPD encryption had unique consequences for an industry that has shaped public perception of policing for decades.
News Coverage Devastated
The LA Times, the region's paper of record, lost real-time access to police activity. Breaking news coverage now depends entirely on LAPD press releases and the Media Relations Division.
TV News Helicopter Operations
Los Angeles pioneered helicopter news coverage of police pursuits and breaking news. Without scanner access, stations can't deploy helicopters until LAPD chooses to notify them.
Entertainment Industry Documentation
Reality TV, documentaries, and true crime productions historically used scanner access to capture authentic police activity. That window into LAPD operations is now closed.
Freelance Journalism Destroyed
Independent "stringers" who sold breaking news footage and tips to outlets have lost their primary tool for knowing where news is happening.
"LAPD's 2019 encryption affected wildfire coverage and reshaped news media in America's second-largest city." - Police Radio Encryption research analysis
Wildfire Coverage Blackout
In a region plagued by devastating wildfires, real-time police radio access has been critical for evacuation coverage. LAPD encryption created a dangerous information gap during fire season.
Before Encryption
- Media monitored police radio for evacuation orders
- Real-time coverage of road closures and danger zones
- Independent verification of official fire perimeters
- Residents could track police activity near their neighborhoods
After Encryption
- Dependent on official announcements that may lag reality
- No independent verification of evacuation boundaries
- Media arrives after the fact, not during emergencies
- Residents in fire zones have less situational awareness
California fire seasons are intensifying due to climate change. LAPD encryption means residents in fire-prone areas have less information when they need it most.
2020 Protests: Social Media Surveillance Revealed
While LAPD blocked the public from monitoring police, documents revealed the department was actively monitoring the public's social media during George Floyd protests.
Dataminr Surveillance
Official emails showed LAPD worked with Dataminr, a controversial social media surveillance company, to monitor protesters' and journalists' social media accounts during the civil uprisings. The department initially denied using the system during BLM protests, but records contradicted that claim.
ABTShield Pilot Program
LAPD piloted social media monitoring software that collected millions of tweets in October and November 2020 from users throughout the United States. A large portion of posts collected were about police reform protests.
Independent Review Findings
The National Policing Institute conducted an independent assessment of LAPD's response to mass demonstrations between May 27 and June 7, 2020, documenting issues with protest response that the public couldn't monitor in real-time due to encryption.
The Surveillance Paradox: LAPD encrypts radio to protect "privacy" while simultaneously collecting millions of social media posts from Americans nationwide. The public cannot monitor police, but police actively monitor the public.
The Southern California Cascade
LAPD's 2019 encryption triggered a cascade of similar decisions across Southern California. Today, the greater Los Angeles area is one of the most encrypted regions in the country.
| Agency | Status | Population Served |
|---|---|---|
| Los Angeles PD | Fully Encrypted | 4 million |
| LA County Sheriff | Fully Encrypted | 10+ million (county) |
| Long Beach PD | Fully Encrypted | 465,000 |
| Pasadena PD | Encrypted | 140,000 |
| Santa Monica PD | Encrypted | 90,000 |
| California Highway Patrol | Fully Encrypted | Statewide |
When agencies coordinated to encrypt, they eliminated any regional alternatives. Residents can't simply tune to neighboring jurisdictions, because nearly everyone went dark together.
LA-RICS: The Regional System
LA-RICS (Los Angeles Regional Interoperable Communication System) demonstrates how encryption infrastructure was built with public funds for public safety, then used to exclude the public.
The LA-RICS project was justified as necessary because safety agencies across 88 cities were using a patchwork of 40 aging networks. The unified system was supposed to improve coordination. Instead, it also unified the ability to block public monitoring across the entire region.
What Los Angeles Lost
The consequences of LAPD encryption extend beyond journalism to fundamental public safety and accountability.
Real-Time Emergency Information
During active shooters, pursuits, or natural disasters, residents cannot monitor police response or make informed safety decisions.
Independent Journalism
Breaking news coverage now depends entirely on what LAPD chooses to share. Independent verification of police accounts is impossible.
Historical Documentation
After the 1992 LA riots, scanner recordings provided crucial documentation. Future major events will lack this independent record.
Community Oversight
Copwatch and community accountability organizations lost a primary tool for documenting police behavior in marginalized communities.
Traffic and Safety Research
Researchers studying accident patterns, crime trends, and police response times lost access to real-time data.
Wildfire Situational Awareness
In a region with increasing fire danger, residents lost a critical tool for tracking evacuation orders and safe routes.
Current Access Options
For those seeking any form of police radio access in Los Angeles, options are essentially non-existent:
Bottom line: If you want to monitor LAPD activity, your only option is to wait for official LAPD press releases through the Media Relations Division.
What You Can Do
LAPD encryption is entrenched, but that doesn't mean change is impossible:
- Support SB 719: California legislation that would require media access to encrypted police radio statewide
- Contact City Council: Los Angeles City Council has oversight authority and could mandate a media access program
- File CPRA requests: Use the California Public Records Act to request documentation of encryption decisions
- Support local journalism: Subscribe to outlets fighting for access and transparency
- Join advocacy groups: California News Publishers Association, SPJ, and First Amendment Coalition are working on these issues
- Document the harm: When lack of scanner access affects public safety or journalism, document and share examples
- Push for civilian oversight: Advocate for civilian review board authority over encryption policies
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
- City of Los Angeles: Bond measure and LA-RICS documentation
- LA-RICS Joint Powers Authority: Regional system specifications
- The Intercept: "LAPD Surveilled Gaza Protests Using This Social Media Tool"
- LA Taco: "Official Emails Show LAPD Worked With Dataminr During George Floyd Protests"
- Brennan Center for Justice: "Documents Reveal LAPD Collected Millions of Tweets"
- National Policing Institute: "Review of LAPD's Response to First Amendment Assemblies"
- RadioReference Forums: LAPD encryption discussions and technical documentation