Flock Exposed - First Amendment Chilling Effects
The license plate reader is the gimmick. What it actually builds is a searchable record of where a car goes, when, and how often - and that record does not stay confined to solving break-ins and stolen vehicles. Documented cases below show it being used to watch protesters, track attendance at churches, mosques, and rallies, and monitor people engaged in constitutionally protected activity that has nothing to do with a crime.
Flock taught police how to surveil "No Kings" protesters
A leaked company webinar showed Flock training police departments on how to use its FlockOS platform, combining live video, license plate readers, drones, traffic data, and building floor plans, to monitor a "No Kings" protest in Denver as a working example. The same training showed the platform being used at other public gatherings including Fourth of July fireworks displays, parades, bicycle races, and Mardi Gras, not just emergencies. An Electronic Frontier Foundation review of ten months of nationwide search logs found more than 50 federal, state, and local agencies ran Flock searches tied to protests, including the No Kings demonstrations in both June and October, a protest against deportation raids in February, and a March protest at Tulsa City Hall in support of Palestinian activist Mahmoud Khalil. Officers are only prompted to type a short reason for each search, and in these cases that reason was often simply the word "protest."
Source: 404 Media, "Flock Taught Cops How to Surveil No Kings Protesters," 2026; 404 Media, "Cops Used Flock to Monitor No Kings Protests Around the Country," 2026; EFF, "How Cops Are Using Flock Safety's ALPR Network to Surveil Protesters and Activists," 2025; The New Republic, "Leaked Video Shows Flock Taught Cops How to Hunt No Kings Protesters," 2026
Animal-rights and other activists tracked through the same nationwide network
The same EFF investigation documented Flock's ALPR network being used to monitor animal-rights activists, noting that simply knowing their vehicles could be tracked through a national surveillance system discourages them from organizing and showing up to demonstrate at all - the defining feature of a chilling effect. Because Flock's cameras capture every vehicle that passes, not just those connected to a crime, the same dragnet that catches a stolen car also catches every driver headed to a protest, whether or not anything unlawful ever occurs there.
Source: EFF, "How Cops Are Using Flock Safety's ALPR Network to Surveil Protesters and Activists," 2025
A national database built from location data, not names, can still identify a church, a rally, or a support group
A license-plate network does not need to know a driver's name to chill a constitutional right - it only needs to notice a pattern. Commentary drawing on the landmark 1958 Supreme Court case NAACP v. Alabama, in which the Court refused to force the NAACP to disclose its membership list, noted that the same principle now applies to license plate tracking: a network that can reconstruct where a car went, when, and how often can already tell that a vehicle registered at a given address visits a particular church every Wednesday night, attends a pro-life rally, or drives to a support group, all without ever learning the driver's name. The Plate Privacy Project's own research found license plate reader cameras positioned near an abortion clinic, a halfway house, an immigration attorney's office, a church, a gun range, and a mosque.
Source: SLG Witness, "The Camera on Every Corner"; Plate Privacy Project, plateprivacy.com
Discriminatory searches against Romani people and surveillance of women seeking reproductive healthcare
The same EFF investigation that uncovered the protest-tracking searches also found more than 80 law enforcement agencies running Flock searches using language that perpetuated harmful stereotypes against Romani people, and documented the network being used to identify women seeking reproductive healthcare, drawn from a dataset of more than 12 million searches logged by roughly 3,900 agencies between December 2024 and October 2025. Flock has claimed a "Proactive Search Term Tool" introduced in June 2025 would block "impermissible" searches, including abortion-related searches in states that prohibit sharing reproductive healthcare data, but the ACLU has noted the tool's effectiveness has not been independently verified.
Source: EFF, "License Plate Surveillance Logs Reveal Racist Policing Against Romani People," 2025; EFF, "EFF's Investigations Expose Flock Safety's Surveillance Abuses: 2025 in Review," 2025; ACLU, "Despite 'New' Updates, Flock's Creepy Cameras Remain Major Civil Liberties Threat"
A Texas deputy searched 83,000 cameras nationwide to track down a woman who had an abortion
On May 9, 2025, a Johnson County, Texas sheriff's official queried the Flock Safety network with the logged reason "had an abortion, search for female." A first search pulled 17,684 cameras across 1,295 networks; a follow-up search expanded that to 6,809 different Flock networks encompassing more than 83,000 cameras nationwide, reaching into states including Washington and Illinois where abortion remains legally protected. Johnson County Sheriff Adam King and Flock Safety both initially told reporters the search was a welfare check for a missing person, and Flock called media coverage "false," "misleading," and "clickbait" - but the two search queries carried the same case number as the sheriff's office's own formal incident report, and court records later showed the office had been eyeing criminal charges. Kate Bertash of the Digital Defense Fund, who researches ALPR systems and abortion surveillance, said the case shows how "police in one state can investigate what is a human right in another state because it is a crime in another." No warrant was issued for the search.
Source: EFF, "She Got an Abortion. So A Texas Cop Used 83,000 Cameras to Track Her Down," 2025; 404 Media, "A Texas Cop Searched License Plate Cameras Nationwide for a Woman Who Got an Abortion," 2025; IBTimes UK, "Cops Tracked Woman's Abortion Across 83,000 Cameras for Her 'Safety'; Court Records Show They Eyed Criminal Charges"
Illinois passed first-in-the-nation laws specifically to stop this kind of tracking
Illinois lawmakers responded directly to this category of risk. HB 3326, described by Planned Parenthood Illinois Action as a first-in-the-nation law, bars any automated license plate reader user from selling, sharing, or transferring ALPR information to any state seeking to investigate or enforce a law that denies or interferes with a person's right to obtain reproductive health care, gender-affirming care, or other lawful health care, or that would allow someone to be detained or investigated over their immigration status. Under the law, an out-of-state agency requesting Illinois ALPR data must provide a written declaration that the data will not be used to enforce those kinds of laws. According to the Illinois Secretary of State's office, ALPR data including real-time location had previously been accessible to out-of-state law enforcement with little to no restriction. Separately, Governor JB Pritzker signed the Reproductive Health Records Privacy Act (HB 5295) on June 24, 2026, which restricts sharing a patient's reproductive health records with out-of-state entities and is aimed at shielding abortion-seekers from out-of-state retaliation. Illinois residents should know these protections exist - and that they only work if a town's own police department and any camera vendor it contracts with actually honor them.
Source: Illinois Senate Democrats, "Feigenholtz measure creating new license plate camera privacy protections signed into law"; Planned Parenthood Illinois Action, "Planned Parenthood Illinois Action Applauds the Passage of HB 3326"; WTTW, "Pritzker Signs Bill Protecting Medical Records for Abortion Patients in Illinois," 2026
A reporter filmed a Flock camera being installed. Three officers showed up.
A journalist who filmed the public installation of a Flock camera was met with three responding officers after the installer, uncomfortable being filmed doing his own job in public, called it in. Nobody was suspected of any crime. In a separate, similarly documented incident, an InvestigateTV reporter filming the public installation of a Flock camera had police called on them by a Flock worker; Flock's own spokesperson later said in response to questions that the company does "not object to members of the public or press photographing Flock cameras or personnel in public." Both incidents illustrate the same underlying tension: a company installing a nationwide camera network in public rights-of-way has, in documented cases, treated ordinary public observation and press photography of its own equipment as suspicious enough to summon police - the same instinct toward surveillance turned back on the people asking questions about it.
Source: Yahoo News/Wired, "A Reporter Filmed a Flock Camera Being Installed. Three Officers Showed Up.," 2026; InvestigateTV, "Flock worker calls police on InvestigateTV reporter filming public camera installation," 2026
Flock's own CEO called the activists mapping his cameras "terroristic" and compared them to Antifa
In a 2025 interview, Flock CEO Garrett Langley described DeFlock, the volunteer, crowdsourced project that maps license plate reader camera locations nationwide, as a "terroristic organization" and said its members are "closer to Antifa than they are anything else," while accusing critics of wanting to "normalize lawlessness." Flock also sent cease-and-desist letters and emailed its own customers warning that critics wanted to defund the police. As public backlash against the company grew through 2026, Langley reversed course, telling Forbes in July 2026 that "my comments were a mistake, and I apologize," and acknowledging that "there are groups today that have real, valid criticisms of the business." Branding peaceful critics and mappers of public infrastructure as terrorists, even briefly, is itself a textbook chilling tactic - it raises the perceived risk of participating in lawful oversight of a company whose product depends on public trust.
Source: Forbes, "Flock CEO Apologizes For Calling Activists 'Terrorists'," 2026; IPVM, "Flock Condemns False Child Predator Allegations, Yet Calls Its Own Critics Terrorists"; WebProNews, "Flock Safety CEO's 'Terrorists' Remark Exposed a Surveillance Giant Unfit for Public Trust"
Months before the apology, Langley told his own law enforcement customers that Flock was under "coordinated attack"
In a December email reportedly sent to all of Flock's law enforcement clients, Langley wrote that "Flock, and the law enforcement agencies we partner with, are under coordinated attack," telling recipients "let's call this what it is." The ACLU, in a piece titled "Flock CEO Goes Ballistic on Critics," reported that Langley went on to portray Flock's critics as motivated not by legitimate disagreement over privacy and the proper role of government, but by a desire to "normalize lawlessness" and "let murderers go free." Framing ordinary policy disagreement as a coordinated assault on police, and casting critics as allies of murderers, is the same pattern later seen in the "terroristic" and Antifa remarks - directed this time straight at the law enforcement agencies that are Flock's own paying customers, encouraging them to see privacy advocates as an enemy rather than a constituency with legitimate concerns.
Source: ACLU, "Flock CEO Goes Ballistic on Critics as More Americans Question Mass Driver Surveillance," December 2025; DeFlockOKC, "The Case Against Flock" (reproducing the full email)
Langley told Americans to "compromise" on privacy - then his own home address was leaked in the backlash
In a mid-August 2026 Fox News interview, Langley argued that "when people talk about just one of these, privacy or safety, they're prioritizing the wrong thing, and what we have to prioritize as a country is compromise." Senator Rand Paul publicly rebuked the remark, writing that Langley "wants you to 'compromise' away your 4th Amendment rights" and that "our Founding Fathers are rolling in their graves at this suggestion." The interview also set off an ugly response in the other direction: within days, an address purportedly belonging to Langley began circulating online, a reminder that the same surveillance debate cuts multiple ways and that doxxing a company executive is no more acceptable than the dragnet tracking this page documents. Separately, after reviewing an interview with a woman whose ex-boyfriend, a police officer, allegedly used Flock cameras to stalk her, Langley told CBS News simply, "I apologize."
Source: RedState, "Flock CEO Sits Down for Interview and People Keep Noticing One 'Creepy' Thing," 2026; Newsweek, "Flock CEO Garrett Langley Targeted as Address Shared Online"; IBTimes UK, "Flock CEO Says Americans Must 'Compromise' on Privacy; Then His Own Home Address Leaked Online"; F*XOXO, citing Washington Post identification of 46 cases of officers misusing Flock to stalk current or former partners
Muslim community organizers say the same surveillance playbook has moved on to new targets
In western Massachusetts, the Muslim Justice League has helped lead a "Get the Flock Out" campaign teaching residents to identify and map local automated license plate readers. Fatema Ahmad, the organization's executive director, told The Shoestring that surveillance technologies were tested on American Muslim communities for roughly the past quarter century following September 11th, and that the same tactics are now being turned on pro-Palestinian activists, protesters against Immigration and Customs Enforcement, and others. Her observation captures the throughline of this entire page: a surveillance tool built and justified for one target rarely stays limited to that target, and a community that has already lived through this kind of monitoring is often the first to recognize it happening to someone else.
Source: The Shoestring, "'Get the Flock Out': Western Massachusetts residents push back against automated license plate readers," 2026
Flock's own "Hotlists" give private companies a tool to track labor activists and "disfavored customers"
Flock has expanded beyond government use by letting private companies add vehicles to Flock "Hotlists," so that any business subscribed to that list is alerted the next time the vehicle is spotted by any Flock camera in the network - marketed to the private sector as "the power of a shared network to identify threats." The ACLU has warned that investigating crime should be the job of law enforcement, not private companies, which have their own incentives to use this kind of shared surveillance infrastructure against labor activists and disfavored customers to protect their bottom line rather than to fight actual crime. The ACLU also notes Flock has introduced AI analytics products that shift the company's role from providing a tool investigators use once they already have a suspect, to a tool that generates suspicion in the first place, by running analytics across the plate-read data it collects from customers nationwide into its own centralized database.
Source: ACLU, "Flock's Aggressive Expansions Go Far Beyond Simple Driver Surveillance"
The Brennan Center: constant camera surveillance makes people censor themselves
The Brennan Center for Justice has written plainly that this kind of surveillance, whether it involves multiple cars appearing together in the same place or a single car showing up repeatedly at a mosque, synagogue, or rally, has a chilling effect on Americans' First Amendment rights to freedom of association, religion, and speech. Its report cites an investigation into an NYPD program monitoring mosque visitors' license plates that found the surveillance "chilled constitutionally protected rights - curtailing religious practice, censoring speech and stunting political organizing." The International Association of Chiefs of Police, a law enforcement group, has itself acknowledged that ALPRs can cause people to "become more cautious in the exercise of their protected rights of expression, protest, association, and political participation because they consider themselves under constant surveillance." The Brennan Center also warns of the risk of more flagrant abuse, such as placing a political opponent's license plate on a hot list to track their whereabouts.
Source: Brennan Center for Justice, "Automatic License Plate Readers: Legal Status and Policy Recommendations for Law Enforcement Use"
A history of law enforcement using license plate surveillance to monitor lawful political activity
This is not a new concern invented by Flock's critics. The Brennan Center for Justice has documented a longer history of law enforcement misusing license plate surveillance to monitor First Amendment-protected activity, including an incident during the 2008 presidential election in which Virginia State Police recorded license plate information at political campaign events. Separately, the NYPD's surveillance of Muslim communities in New York, which included photographing, recording, and collecting license plate information of mosque attendees, became the basis of the federal lawsuit Hassan v. City of New York, illustrating how license-plate-based monitoring of a house of worship can become part of a broader surveillance program targeting a religious community.
Source: Brennan Center for Justice, "Automatic License Plate Readers: Legal Status and Policy Recommendations for Law Enforcement Use"; Princeton Legal Journal, "Electronic Surveillance, the Fourth Amendment, and the NYPD's 'Muslim Surveillance Program'"
The bottom line: a technology pitched to your town as a tool against car theft and hit-and-runs has documented uses well beyond that pitch - tracking who attends a protest, a rally, a church, or a clinic, and even branding its own peaceful critics as terrorists. A camera does not need to know a driver's name to discourage that driver from going back.
This page will be updated as more factual sources become available.