Boston Police Scanner Encrypted: America's First Police Force Goes Dark
The city that established the first American Watch in 1631 has silenced its police communications. On August 9, 2025, Boston Police Department encrypted all radio traffic, ending public access in the birthplace of American law enforcement. Nine days later, according to the city's largest police union, the main radio channel went dark for close to 30 minutes during a night of gun violence after the Dominican Festival. Was this a preview of what encrypted secrecy brings?
Key Facts at a Glance
The Marathon Bombing Lesson Boston Forgot
On April 15, 2013, two bombs exploded near the Boston Marathon finish line. At 2:52 PM, a police supervisor's voice cut through the radio: "Emergency! I need officers!" Within minutes, scanner traffic allowed journalists, hospitals, and first responders to coordinate the response that saved lives.
The official after-action report praised the interoperable communications that connected police, fire, and EMS across eight cities and towns along the marathon course. Radio transmissions from BPD, Boston Fire, EMS, and Massachusetts State Police were all accessible, enabling real-time coordination during chaos.
What open radios made possible
Within minutes of the blasts, SWAT and EOD teams were deploying and a unified command was forming — coordination the after-action report credited to strong, interoperable communications. Open radio traffic let journalists and the public follow that response in real time. Would encryption have helped or hurt?
The same department that benefited from open communications during its worst crisis has now made such coordination impossible to verify publicly. Twelve years after the Marathon bombing proved the value of transparent emergency communications, Boston chose secrecy.
The August 2025 Switch
Boston Police announced on Wednesday, August 6, 2025, that they would convert to encrypted digital radio on Saturday, August 9. Three days' notice for a change that ended nearly four centuries of public accountability.
The department's justifications were familiar: "update antiquated equipment," better communication abilities, cut background noise and static, and prevent "bad actors" from monitoring police activity.
"It's concerning because the practice cuts off our access for real time information about police activity in our communities, and that makes it really difficult not only for journalists who do their jobs, but also for many members of the public who listen to these scanners regularly."
— Justin Silverman, New England First Amendment CoalitionThe "public" feed: a 5-minute illusion
Boston offered a concession: a delayed public feed of six channels at radio.rapidsos.com/boston. But the department confirmed the delay would be "approximately 5 minutes" in most cases. BPD spokesperson Mariellen Burns did not respond to Boston.com's question about whether certain transmissions would be redacted entirely.
Five minutes is an eternity in breaking news. During the Marathon bombing, the first 5 minutes determined whether victims lived or died, whether suspects were identified, whether the public knew to shelter in place. A 5-minute delay transforms journalism from real-time accountability into after-the-fact stenography.
Nine Days Later: Radio Blackout During Violence
On August 17, 2025, the Dominican Festival drew thousands to Franklin Park. Overnight, as the celebration wound down into the early hours of August 18, gunfire erupted — five people were shot near Franklin Park. Officers scrambled to respond.
But there was a problem: the main police radio channel went dark for close to 30 minutes, according to Boston's largest police union, the Boston Police Patrolmen's Association. By the union's account, officers responding to an active shooting lost their primary communication channel.
Union Warning
Boston's largest police union flagged an "inexplicable" 30-minute blackout on the main radio channel during the Dominican Festival.
Council Outrage
Councilors Erin Murphy and Ed Flynn demanded an investigation, calling the breakdown a threat to public safety.
BPD's Response
Superintendent-in-Chief Phillip Owens disputed the 30-minute claim, saying officers "immediately" switched to a backup channel.
The timing was devastating for BPD's encryption rollout. Just 9 days after promising that new digital encrypted radios would improve communications, the union reported a channel failure during a night when five people were shot. Councilor Flynn called for an independent investigation.
The accountability gap
Before encryption, the public could verify police claims about response times and communication. Now, we have only the department's word. When BPD says the outage lasted a matter of seconds and the union says close to 30 minutes, how would anyone check?
Impact on New England Journalism
Boston is the media capital of New England. The Boston Globe, Boston Herald, WCVB, WBZ, and dozens of other outlets have covered breaking news using scanner access for generations. That era is over.
Boston Globe
New England's paper of record now covers Boston police incidents entirely through official channels. No independent verification of response times, no real-time documentation of police activity.
TV News
WCVB, WBZ, WHDH, and local stations can no longer dispatch crews based on scanner traffic. They wait for police notifications, arriving after incidents conclude.
Regional Ripple Effect
The Berkshire Eagle warned that Boston's encryption "may influence other departments across the commonwealth." Massachusetts' largest city sets the precedent.
"When the head of the New England First Amendment Coalition warns of a blow to the free flow of information in Massachusetts, our journalism senses start tingling."
— The Berkshire Eagle Editorial BoardThe New England First Amendment Coalition Response
Justin Silverman, executive director of the New England First Amendment Coalition, has been the leading voice against Boston's encryption. NEFAC, founded in 2006, advances First Amendment and open government principles across the six-state region.
Silverman has consistently connected police encryption to broader transparency failures in Massachusetts:
- Massachusetts State Police are "one of the worst offenders when it comes to the Massachusetts public records law"
- Internal affairs reports are "crucial to the public's understanding of whether officers who commit misconduct are being held accountable"
- Boston's encryption is part of a pattern where "it's really difficult to know if police are acting reasonably"
The coalition has long advocated for transparency reforms, but Massachusetts consistently ranks among the nation's least transparent states. Boston's encryption fits the pattern.
Comparison: New England Encryption Status
Boston's move puts it ahead of many New England neighbors but behind others in the race to secrecy.
| Department | Status | Notes |
|---|---|---|
| Boston PD | Encrypted | August 2025, with 5-minute delayed feed |
| Mass. State Police | Partial | CoMIRS P25 statewide; patrol dispatch largely in the clear, specialized channels encrypted |
| MBTA Transit Police | Partial | Dispatch talkgroups in the clear on the state CoMIRS system |
| Lawrence PD | Encrypted | Among the first MA communities to encrypt full-time |
| Springfield PD | Encrypted | Reported encrypted; verify current status at RadioReference |
| Neighboring States | Mostly Open | Much of southern New England remains open; status varies by agency |
A telling contrast: most police departments in the states surrounding Massachusetts still operate in the clear. Encryption status changes frequently, though — verify any specific agency in the live RadioReference database before relying on it.
The Massachusetts Public Records Problem
Boston's encryption doesn't exist in a vacuum. Massachusetts has "one of the worst public records laws in the country," according to transparency advocates. The state is "frequently ranked as the least transparent state government in the entire nation."
The ACLU of Massachusetts has filed multiple lawsuits against police departments for withholding public records. The Boston Police Department is among those sued for transparency violations. Encryption represents the ultimate records denial: information that was never public in the first place.
What Happened to Mansfield?
Not every Massachusetts community has embraced encryption. Mansfield Police encrypted when they went digital, then later turned encryption off — listeners report their channels have operated in the clear ever since.
The Mansfield reversal points to a practical problem with encryption: interoperability. When one department encrypts and neighbors don't, mutual aid becomes complicated. Officers responding across town lines can't monitor each other's channels.
Boston's size may insulate it from these concerns, but smaller Massachusetts departments watching the Mansfield example have reason to hesitate.
What Massachusetts Residents Can Do
Contact the New England First Amendment Coalition
NEFAC at nefac.org advocates for transparency across the region. Justin Silverman and his team are fighting encryption statewide.
Support State Transparency Legislation
Massachusetts has no law protecting scanner access. Contact your state representative and senator on Beacon Hill to advocate for press and public access provisions.
File Public Records Requests
Request encryption costs, decision memos, and communications between BPD and vendors. Document how much taxpayers are paying for reduced transparency.
Connect with ACLU of Massachusetts
The ACLU has sued multiple Massachusetts agencies over transparency failures. They may be interested in encryption-related advocacy.
Demand Answers About the Franklin Park Blackout
Contact City Councilors Murphy and Flynn to support their investigation. Ask why the new encrypted system failed within 9 days of launch.
Monitor What Remains Open
MBTA Transit Police primary dispatch may still be accessible. Fire and EMS channels often remain open. Document what you can still monitor.
The History Boston Abandoned
Boston's police history is America's police history. The town established a Watch in 1631, just 11 years after the Mayflower landed. Town Meeting took control in 1636. For nearly four centuries, some form of public oversight existed over law enforcement in Boston.
The modern Boston Police Department was founded in 1854 with 250 officers, replacing the old Watch system. By 1900, BPD had grown to 1,000 patrolmen. The 1919 Police Strike made national headlines and reshaped the department.
Through all of this, the public maintained some ability to monitor police activity. Encrypted radio represents a break with that tradition—a city founded on participatory democracy choosing to hide its police communications from the citizens who pay for them.
Boston establishes first American Watch
Boston Police Department founded with 250 officers
Open radio aids Marathon bombing response
BPD announces encryption with 3 days' notice
All BPD communications go encrypted
Police union reports ~30-minute radio blackout during overnight violence after the Dominican Festival
Sources
- Boston Police Department: Radio System Announcement
- Boston Globe: BPD Radio Digital System
- Boston.com: Scanner Transmissions Encrypted
- Berkshire Eagle: Editorial on Information Freedom
- Boston Herald: City Councilors Demand Probe
- Boston 25: Radio Offline 30 Minutes
- After Action Report: 2013 Boston Marathon Bombings
- WBUR: Radio Scans Show Boston Police Heroics
- New England First Amendment Coalition
- Boston Police Department History
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