When everything is encrypted, the public must trust that agencies will release enough information quickly enough. Sometimes they do. Sometimes they do not.
The Garden Grove hazardous materials emergency is a perfect example of why public safety radio encryption matters.
A chemical tank incident at the GKN Aerospace facility forced large evacuations, road closures, school closures, and a massive multi-agency response. At one point, fire officials warned that the tank could either rupture and spill hazardous material or go into a catastrophic thermal event.
For decades, scanner listeners, newsrooms, volunteer groups, and concerned residents could follow major incidents like this in real time. During fires, floods, chemical releases, pursuits, evacuations, earthquakes, and major traffic incidents, public safety radio gave the public a direct window into what was happening.
Today, in much of Orange County, that window is closed.
Orange County Fire Authority, police agencies, and sheriff communications are encrypted. That means the public cannot monitor most of the radio traffic from an incident like this with a scanner. The same is true in many other parts of California, including areas served by encrypted county sheriff and city police systems.
Why This Matters
Public agencies often say encryption is needed to protect personal information, officer safety, tactical operations, and victim privacy. Those are legitimate concerns.
But full-time encryption of routine dispatch and incident channels creates another serious problem: the public loses real-time situational awareness.
During a fast-moving emergency, minutes matter. People want to know:
- Is the danger moving toward my neighborhood?
- Which roads are closed?
- Are evacuations expanding?
- Is there a shelter location?
- Are schools affected?
- Is this smoke, vapor, or chemical exposure?
- Are firefighters making progress?
- Is the incident getting better or worse?
When radio traffic is encrypted, the public must wait for press releases, social media posts, news conferences, or filtered updates from agency spokespeople. Those updates may be accurate, but they are delayed and controlled. They do not replace the raw, real-time picture that scanners once provided.
The Garden Grove Example
In the Garden Grove hazmat incident, official updates eventually provided important information about the chemical involved, the evacuation zone, and the status of the tank. Fire officials also held public briefings to explain the seriousness of the situation.
But for scanner listeners, the event also showed how much information is no longer available to the public. Much of the fire, law enforcement, evacuation, and command traffic could not be followed directly.
That is a major change from how public safety monitoring worked for generations.
This Is Not Just About Hobbyists
This issue is bigger than the scanner hobby.
Open public safety radio has historically helped:
- News reporters quickly verify breaking incidents
- Residents understand what is happening nearby
- Volunteer groups track emergencies
- Off-duty responders maintain awareness
- Neighborhoods prepare during wildfires or evacuations
- Traffic reporters identify major disruptions
- Watchdog groups monitor government activity
When everything is encrypted, the public must trust that agencies will release enough information quickly enough. Sometimes they do. Sometimes they do not.
Where This Has Caused Concern Elsewhere
Across California, public pushback has grown as more agencies have moved to full encryption.
In Berkeley, residents objected to a proposal to make police radio traffic private. Some said they use scanner apps when they hear sirens, explosions, or police activity nearby because they want to know what is happening in their own neighborhoods. Others raised broader concerns about transparency and government accountability.
State Senator Josh Becker has also pushed back against full encryption. He argued that California had nearly a century of public access to police radio communications before many agencies began shutting access down after a 2020 California DOJ policy change involving personal information and CLETS data.
Becker’s position is not that every transmission should be open. Tactical operations, undercover activity, medical details, victim information, driver’s license data, criminal history checks, and other private information should be protected. But routine dispatch and major incident information can often be shared without exposing private data.
That is the balance many scanner listeners, journalists, and transparency advocates are asking for.
The California DOJ Issue
The current wave of encryption in California is often tied to the California Department of Justice requirement that agencies protect personally identifiable information and criminal justice information transmitted over public safety radio.
The problem is that some agencies responded by encrypting everything.
Other agencies have taken a more balanced approach by changing procedures, using separate encrypted channels for sensitive information, or keeping routine dispatch traffic in the clear.
That proves full encryption is not the only option.
Possible Solutions
There are several ways agencies could protect sensitive information while still keeping the public informed:
- Keep primary dispatch channels in the clear
Routine dispatch traffic should remain monitorable whenever possible. - Use encrypted tactical and records channels
Sensitive information can be moved to encrypted side channels instead of encrypting everything. - Delay online feeds instead of eliminating access
A short delay may reduce officer-safety concerns while still preserving public awareness. - Provide media and public access radios
Approved media organizations, public information groups, and possibly vetted community organizations could be given receive-only access. - Stream sanitized dispatch audio
Agencies could provide official online audio that removes records checks, medical details, and tactical traffic. - Publish real-time incident dashboards
PulsePoint-style systems, CAD summaries, evacuation maps, road closures, and shelter information should be updated quickly and publicly. - Require public-access policies by law
California could pass legislation requiring agencies to provide real-time access to routine public safety communications while still protecting confidential information.
What Scanner Listeners Can Still Monitor
Even when police and fire are encrypted, listeners may still be able to follow parts of a major incident through:
- Broadcastify feeds, where available
- Broadcastify Calls archives, where available
- PulsePoint
- CHP radio traffic
- Cal Fire channels during wildland incidents
- Aviation frequencies
- Media helicopter air-to-air and air-to-ground traffic
- Some public works channels
- Amateur radio emergency nets
- Marine, railroad, and utility channels
- Official agency social media
- Nixle, AlertOC, Wireless Emergency Alerts, and city emergency notification systems
For Orange County specifically, listeners should check Broadcastify and Broadcastify Calls for any remaining available fire dispatch, fire tactical, CHP, aviation, or related feeds. However, encrypted transmissions will not be heard on a scanner or public feed.
What the Public Can Do
Scanner listeners and concerned residents are not powerless.
Here are practical steps:
- Contact city council members, county supervisors, and fire authority board members
- Ask whether routine dispatch channels can remain unencrypted
- Support legislation requiring real-time public access to non-sensitive radio traffic
- Ask agencies to publish clear encryption policies
- Request public records on why encryption was adopted
- Encourage local media to challenge full encryption
- Support organizations that defend public access and open government
- Attend public meetings when radio system upgrades are discussed
- Ask agencies to provide official live incident dashboards
- Educate the public that this is not just a “scanner hobby” issue
A Reasonable Middle Ground
No serious person is arguing that private medical information, victim names, undercover operations, SWAT activity, or criminal history data should be broadcast in the clear.
But full-time encryption of all routine public safety communications goes too far.
The public pays for these systems. The public is affected by these emergencies. The public has a legitimate interest in knowing what is happening in real time during events that may threaten lives, homes, schools, businesses, and neighborhoods.
The Garden Grove hazmat emergency should remind all of us that public safety information is not just an internal government matter.
In a major emergency, information is safety.
And when the radios go silent, the public loses one of its fastest and most reliable tools for understanding what is happening around them.