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Worried about surveillance, states enact privacy laws and restrict license plate readers

A police officer uses the Flock Safety license plate reader system.

A police officer uses the Flock Safety license plate reader system. Many left-leaning states and cities are trying to protect their residents’ personal information amid the Trump administration's immigration crackdown, but a growing number of conservative lawmakers also want to curb the use of surveillance technologies. (Photo courtesy of Flock Safety)

As part of its deportation efforts, the Trump administration has ordered states to hand over personal data from voter rolls, driver’s license records and programs such as Medicaid and food stamps.

At the same time, the administration is trying to consolidate the bits of personal data held across federal agencies, creating a single trove of information on people who live in the United States.

Many left-leaning states and cities are trying to protect their residents’ personal information amid the immigration crackdown. But a growing number of conservative lawmakers also want to curb the use of surveillance technologies, such as automated license plate readers, that can be used to identify and track people.

Conservative-led states such as Arkansas, Idaho and Montana enacted laws last year designed to protect the personal data collected through license plate readers and other means. They joined at least five left-leaning states — Illinois, Massachusetts, Minnesota, New York and Washington — that specifically blocked U.S. Immigration and Customs Enforcement from accessing their driver’s license records.

In addition, Democratic-led cities in Colorado, Illinois, Massachusetts, New York, North Carolina, Texas and Washington last year terminated their contracts with Flock Safety, the largest provider of license plate readers in the U.S.

The Trump administration’s goal is to create a “surveillance dragnet across the country,” said William Owen, communications director at the Surveillance Technology Oversight Project, a nonprofit that advocates for stronger privacy laws.

We're entering an increasingly dystopian era of high-tech surveillance.

– William Owen, communications director at the Surveillance Technology Oversight Project

“We’re entering an increasingly dystopian era of high-tech surveillance,” Owen said. Intelligence sharing between various levels of government, he said, has “allowed ICE to sidestep sanctuary laws and co-opt local police databases and surveillance tools, including license plate readers, facial recognition and other technologies.”

A new Montana law bars government entities from accessing electronic communications and related material without a warrant. Republican state Sen. Daniel Emrich, the law’s author, said “the most important thing that our entire justice system is based on is the principle against unlawful search and seizure” — the right enshrined in the Fourth Amendment to the U.S. Constitution.

“It’s tough to find individuals who are constitutionally grounded and understand the necessity of keeping the Fourth Amendment rights intact at all times for all reasons — with minimal or zero exceptions,” Emrich said in an interview.

ICE did not respond to Stateline’s requests for comment.

Automated license plate readers

Recently, cities and states have grown particularly concerned over the use of automated license plate readers (ALPRs), which are high-speed camera and computer systems that capture license plate information on vehicles that drive by. These readers sit on top of police cars and streetlights or can be hidden within construction barrels and utility poles.

Some cameras collect data that gets stored in databases for years, raising concerns among privacy advocates. One report from the Brennan Center for Justice, a progressive think tank at New York University, found the data can be susceptible to hacking. Different agencies have varying policies on how long they keep the data, according to the International Association of Chiefs of Police, a law enforcement advocacy group.

Supporters of the technology, including many in law enforcement, say the technology is a powerful tool for tracking down criminal suspects.

Flock Safety says it has cameras in more than 5,000 communities and is connected to more than 4,800 law enforcement agencies across 49 states. The company claims its cameras conduct more than 20 billion license plate reads a month. It collects the data and gives it to police departments, which use the information to locate people.

Holly Beilin, a spokesperson for Flock Safety, told Stateline that while there are local police agencies that may be working with ICE, the company does not have a contractual relationship with the agency. Beilin also said that many liberal and even sanctuary cities continue to sign contracts with Flock Safety. She noted that the cameras have been used to solve some high-profile crimes, including identifying and leading police to the man who committed the Brown University shooting and killed an MIT professor at the end of last year.

“Agencies and cities are very much able to use this technology in a way that complies with their values. So they do not have to share data out of state,” Beilin said.

Pushback over data’s use

But critics, such as the American Civil Liberties Union, say that Flock Safety’s cameras are not only “giving even the smallest-town police chief access to an enormously powerful driver-surveillance tool,” but also that the data is being used by ICE. One news outlet, 404 Media, obtained records of these searches and found many were being carried out by local officers on behalf of ICE.

Last spring, the Denver City Council unanimously voted to terminate its contract with Flock Safety, but Democratic Mayor Mike Johnston unilaterally extended the contract in October, arguing that the technology was a useful crime-fighting tool.

The ACLU of Colorado has vehemently opposed the cameras, saying last August that audit logs from the Denver Police Department show more than 1,400 searches had been conducted for ICE since June 2024.

“The conversation has really gotten bigger because of the federal landscape and the focus, not only on immigrants and the functionality of ICE right now, but also on the side of really trying to reduce and or eliminate protections in regards to access to reproductive care and gender affirming care,” Anaya Robinson, public policy director at the ACLU of Colorado.

“When we erode rights and access for a particular community, it’s just a matter of time before that erosion starts to touch other communities.”

Jimmy Monto, a Democratic city councilor in Syracuse, New York, led the charge to eliminate Flock Safety’s contract in his city.

“Syracuse has a very large immigrant population, a very large new American population, refugees that have resettled and been resettled here. So it’s a very sensitive issue,” Monto said, adding that license plate readers allow anyone reviewing the data to determine someone’s immigration status without a warrant.

“When we sign a contract with someone who is collecting data on the citizens who live in a city, we have to be hyper-focused on exactly what they are doing while we’re also giving police departments the tools that they need to also solve homicides, right?” Monto said.

“Certainly, if license plate readers are helpful in that way, I think the scope is right. But we have to make sure that that’s what we’re using it for, and that the companies that we are contracting with are acting in good faith.”

Emrich, the Montana lawmaker, said everyone should be concerned about protecting constitutional privacy rights, regardless of their political views.

“If the government is obtaining data in violation of constitutional rights, they could be violating a whole slew of individuals’ constitutional rights in pursuit of the individuals who may or may not be protected under those same constitutional rights,” he said.

Stateline reporter Shalina Chatlani can be reached at schatlani@stateline.org.

This story was originally produced by Stateline, which is part of States Newsroom, a nonprofit news network which includes Wisconsin Examiner, and is supported by grants and a coalition of donors as a 501c(3) public charity.

Milwaukee sheriff pushes facial recognition technology before county board

Milwaukee County Sheriff Denita Ball (right) sits beside Chief Deputy Brian Barkow (left). (Photo by Isiah Holmes/Wisconsin Examiner)

Milwaukee County Sheriff Denita Ball (right) sits beside Chief Deputy Brian Barkow (left) during a meeting of the Milwaukee County Board. (Photo by Isiah Holmes/Wisconsin Examiner)

Dozens of people filled a room in Milwaukee’s courthouse complex Tuesday morning, listening as representatives from the sheriff’s office pushed for adopting facial recognition technology and answered questions about the Flock camera system. The Milwaukee County Sheriff’s Office hopes to equip its booking room cameras with facial recognition software from the company Biometrica, a move that was not well received by some county residents.

For over an hour, Chief Deputy Brian Barkow and other sheriff’s office staff attempted to quell residents’ fears. During the Tuesday meeting of the Committee on Judiciary, Law Enforcement and General Services, board members listened to a lengthy presentation from the sheriff’s office differentiating various camera systems, and highlighting aspects of a proposed policy governing facial recognition technology. 

The Wisconsin Examiner’s Criminal Justice Reporting Project shines a light on incarceration, law enforcement and criminal justice issues with support from the Public Welfare Foundation.

In June, the county board unanimously voted to call on the sheriff’s office  to work with community members to create such a policy. Residents had increasingly expressed concern after the Milwaukee Police Department signaled that it was exploring an agreement with Biomentrica to provide 2.5 million images, booking records and other information in exchange for access to facial recognition software. As concerns mounted about  the police department contract, the public learned that the county sheriff’s office  was also exploring a similar agreement with Biometrica. 

During the Tuesday committee meeting, Barkow ran through the various camera systems the sheriff’s office uses. From Genetec, a video management platform that can detect motion and loitering, to general purpose security cameras used from the zoo to the courthouse, cameras installed in police vehicles, camera trailers, body cameras, and AI-powered Flock cameras used to identify vehicle license plates. 

A sprawling network of Flock cameras has been erected by over 5,000 law enforcement agencies nationwide, including at least 221 in Wisconsin. The cameras perpetually photograph and identify vehicles using license plates, storing that data for a period of time and allowing law enforcement to search Flock’s network for that data. The cameras can be set up to notify officers of when specific vehicles are spotted, sending more notifications as they pass Flock cameras installed in one neighborhood or another.

Barkow and Sheriff Denita Ball said that saying that this practice amounts to “tracking” is a misrepresentation. “When you say ‘tracking’,” Barkow told the Wisconsin Examiner, “most people think of I’m like, live tracking you. And so an alert occurs, right, but it occurs after that vehicle has already been someplace.” Ball underscored the point. “What it says is the car is here at this time,” said Ball. “Now because it has alerted the police officer, the deputy sheriff, what they’re going to do now is follow that car.” Barkow added in such situations a deputy could “respond to that area to attempt to locate the vehicle.” It may then pass in front of another Flock camera at some point, or it may not, Barkow added. 

None of these systems use facial recognition software, Barkow and other sheriff’s office  staff said. Rather, the sheriff’s office sees its booking room cameras — used to photograph people during the intake process at the jail — as good candidates for Biometrica’s software. A PowerPoint presentation produced by the sheriff’s office states that these cameras can capture high-quality images of scars, marks, tattoos, and other distinctive characteristics. 

Milwaukee residents give public comment. (Photo by Isiah Holmes/Wisconsin Examiner)
Milwaukee residents give public comment. (Photo by Isiah Holmes/Wisconsin Examiner)

The presentation states that the sheriff’s office  is evaluating how facial recognition could be used to compare booking images against law enforcement databases. No biometric information or data would be accessed, stored, or transmitted, the PowerPoint stated, and all searches would be both private and logged, nor would the data be sold to third parties. 

Facial recognition software could be used to identify people linked to active investigations, missing persons, witnesses, victims, mitigating “imminent threats” like terrorism and violence, and assisting forensic processes. Sheriff’s office staff would be prohibited from using it for mass surveillance or indiscriminate tracking, automated real-time identification without human oversight, targeting people based on race, gender, religion, or other protected traits, or relying on facial recognition as the sole reason for an arrest or for pursuing a search warrant. 

Committee members peppered Barkow and company with a variety of questions. They raised concerns about the adoption of surveillance technologies in the current political climate, particularly when it comes to actions by the Trump administration. There were questions about whether agencies like immigration enforcement could access the accumulated data of Flock or facial recognition cameras, and who exactly in the sheriff’s  chain of command would be making decisions about how the technology is used and who accesses it. Some expressed concerns that facial recognition has been shown to have higher failure rates for non-white faces. Sheriff’s office staff  and representatives from Biometrica countered that although early models of the technology did have those issues, advancements have all but eliminated those concerns, though no specific improved detection rates were provided. 

Sup. Justin Bielinski, who chairs the committee, set a strict two-minute limit on speaking time because of the large volume of people waiting to comment

Calling Sheriff Ball a “liar” who had failed to respond to community concerns about the jail, Ron Jansen, the first member of the public to speak, said, “this department cannot be given additional power, period.” Jansen said that sheriff’s office  staff could run screenshots through facial recognition software applications, or request other law enforcement agencies to do it for them. Jansen pushed back against the sheriff’s claims that running a photo through facial recognition technology is similar to putting a picture out in the news. “Great!” Said Jansen. “I would encourage them not to waste our money on [facial recognition] technology and instead to continue running photos in the news, and asking for public support. It’s cheaper and probably a lot more effective.” 

One person after another  expressed doubts about the Milwaukee sheriff’s  push to adopt facial recognition technology, and also questioned the use of Flock cameras. Several referred to a recent scandal involving the Greenfield police chief, who is facing felony charges after having a department-owned pole camera installed at his home to monitor his wife during a messy divorce. Others compared the capabilities of Flock and facial recognition technology to World War II-era European countries where secret police photographed and identified targeted individuals. 

Many, including members of the committee, echoed fears about federal agencies accessing the data collected by the Milwaukee sheriff’s tools. “I haven’t heard one community member today say that they support this,” said Angela Lang, executive director of Black Leaders Organizing Communities (BLOC). “All of the folks that we have been talking to in the community say if we actually want to get to the root causes of crime, we invest in things like mental health and health care and affordable housing.”

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Bill to allow police to down drones spurs questions from lawmakers

A drone watching a protest. (Photo by Isiah Holmes/Wisconsin Examiner)

A drone watching a protest. (Photo by Isiah Holmes/Wisconsin Examiner)

The Wisconsin Examiner’s Criminal Justice Reporting Project shines a light on incarceration, law enforcement and criminal justice issues with support from the Public Welfare Foundation.

“It is a unique bill that has a lot of emotion and nuances to it,” said Rep. Chuck Wichgers (R-Muskego), describing a bill to give local law enforcement the power to disable or destroy drones. Speaking to the Assembly Committee on Criminal Justice and Public Safety on Wednesday, Wichgers said that the bill would give “the bare minimum protection” for both the public and police as global drone technology continues to rapidly evolve.

Although current state law prohibits the use of weaponized drones, the devices are not actually defined in statute. Wichgers’ bill would define a weaponized drone as one which “is equipped with a taster, firearm, flamethrower, chemical, or explosive device.” 

Wichgers cautioned that “we can easily complicate this bill,” especially given the growth of drone technology around the world. Over the last two decades, drones have gone from being scarcely heard of outside military settings to becoming household objects. The U.S. military’s infamous Reaper and Predator drones, some of which are the size of small planes, have long been used in combat for reconnaissance and lethal strikes. Today, however, the same small and cheap quad-copter drones used by photographers, landscapers and children are being outfitted with explosives for kamikaze-style attacks on armored vehicles on Russian and Ukrainian battlefields, where an estimated 70-80% of casualties are caused by drones.

“It’s beyond fascinating,” Wichgers  said of “this is a big and global issue.” Wichgers told committee members that “we need to start getting language in statute,” since only certain federal agencies currently have the authority to down weaponized drones. “This bill allows Wisconsin law enforcement to mitigate a threat posed by a weaponized drone by detecting, tracking and identifying the drone and then intercepting, disabling, or in a worst case scenario, destroying the drone.” 

In order to protect public safety,  Wichgers said  that “these powers should be extended to local law enforcement.” He added that the federal government provides grants to help mitigate drone threats, as well as $500 million set aside for fiscal year 2026-27, as part of the Trump administration’s “One Big Beautiful Bill Act.” “The difficulty is that law enforcement should not have to waiver if there is an immediate threat for a drone that is weaponized or carrying a load that is harmful to the public,” said Wichgers. “Our airspace needs to be safe, just like we’re safe on our roads.” 

A quickly moving goalpost 

The bill was requested by the Police Chief Association of Waukesha County, Wichgers said. “State law must be enacted that is responsive to current and future needs as best as we can determine them in order to prevent harm and protect our communities,” he added. 

Committee members chimed in with a variety of questions. Rep. Shae Sortwell (R-Two Rivers) joked about farmers using weaponized drones to eliminate sandhill cranes consuming crops. Wichgers brought up  his own examples, including nervous neighbors calling the police to check out roofers who might be using drones for survey work, or a drone being used at a concert to drop fentanyl on people who then overdose in the crowd. “Right now the police would say, ‘Sorry, the Wisconsin Legislature is dragging their feet on passing a law that gives me permission to disarm that drone that’s a threat, we’ll have to wait till next session,” said Wichgers. 

Dan Thompson, chief of the Waukesha Police Department, told the committee,  that “drones carry contraband, surveillance equipment or worse, weaponized payloads” and that the technology can “present a unique danger that demands an immediate intervention.” 

The chief’s comments prompted Rep. David Steffen (R-Howard) to seek clarification that under the proposed bill a drone does not, in fact, need to be weaponized, and that law enforcement only need to “reasonably suspect” that it could pose a public safety threat in order to shoot it down. Sortwell said that the bill’s language seemed broad. 

Sortwell questioned whether as the bill is written, shooting down a drone could be justified at any time. Legislative counsel said, “I don’t know that I can really answer that.” Sortwell shot back, “The fact that you can’t say ‘no’ is troubling.”

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Waukesha Sheriff Flock system data raises questions

Waukesha County Sheriff Department, one of the agencies which participate in the 287(g) program. (Photo by Isiah Holmes/Wisconsin Examiner)

The Waukesha County Sheriff Department. An audit of the department's use of data from the Flock surveillance camera system shows inconsistent reporting the reasons on the reasons investigators access the information, a problem common among police agencies. (Photo by Isiah Holmes/Wisconsin Examiner)

Like other Wisconsin law enforcement agencies, the Waukesha County Sheriff’s Department (WCSD) uses Flock cameras for many reasons, though department personnel don’t always clearly document what those reasons are. Audit data reveals that staff most frequently entered “investigation” in order to access Flock’s network, while other documented uses are raising concerns among privacy advocates. 

Flock cameras perpetually photograph and, using AI-powered license plate reader technology, identify vehicles traversing roadways. Flock’s system can be used to view a vehicle’s journey, even weeks after capturing an image, or flag specific vehicles for law enforcement which have been placed on “Be On The Lookout” (BOLO) lists.

The Wisconsin Examiner’s Criminal Justice Reporting Project shines a light on incarceration, law enforcement and criminal justice issues with support from the Public Welfare Foundation.

As of March 2025, the company Flock Safety was valued at $7.5 billion, with over 5,000 law enforcement agencies using its cameras nationwide. At least  221 of those agencies are in Wisconsin, including the city of Waukesha’s police department as well as  the county sheriff . The Wisconsin Examiner obtained Flock audit data from the Waukesha County Sheriff’s Department through open records requests, covering Flock searches from January 2024 to July 2025, and used computer programming to analyze the data.

Over that period of time, more than 6,700 Flock searches were conducted by WCSD using only “investigation”, as well as abbreviations or misspellings of the word. The searches, as they appeared in the audit data, offered no other context to suggest why specifically Flock’s network had been searched. Lt. Nicholas Wenzel, a sheriff’s department spokesperson, wrote in an email statement that “investigation” has a broad usage when Flock is involved. 

“A deputy/detective using Flock for an investigation is using it for a wide range of public safety situations,” Wenzel explained. “Flock assists in locating missing persons during Amber or Silver Alert by identifying their vehicles and has proven effective in recovering stolen cars. Investigators use Flock to track suspect vehicles in serious crimes such as homicides, assaults, robberies, and shootings, as well as in property crimes like burglaries, catalytic converter thefts, and package thefts. The system also supports traffic-related investigations, including hit-and-run cases, and enables agencies to share information across jurisdictions to track offenders who travel between communities.”

Widespread use of vague search terms 

Dave Maass, director of investigations at the Electronic Frontier Foundation, says that terms like “investigation” are too vague to determine whether or not Flock was used appropriately.  At least some responsibility falls on Flock Safety itself, Maass argues. “They’re setting up a system where it’s impossible for somebody to audit it,” he told the Wisconsin Examiner. “And I think that’s the big problem, is that there’s no baseline requirement that you have to have a case related to this…They say you have to have a law enforcement purpose. But if you just put the word ‘investigation’ there, how do you know? Like, how do you know that this is not somebody stalking their ex-partner? How do you know whether this is somebody looking up information about celebrities? How do you know whether it’s racist or not? And you just don’t, because nobody is checking any of these things.”

The audit also stored other vague search terms used by WCSD such as “f”, “cooch”, “freddy”, “ts”, “nathan”, and “hunt” which Lt. Wenzel would not define.“The search terms are associated with investigations, some of which remain active,” he wrote in an email statement. “To preserve the integrity of these ongoing investigations, no further description or clarification of the terms can be provided at this time.” 

A Flock camera on the Lac Courte Orielles Reservation in Saywer County. | Photo by Frank Zufall/Wisconsin Examiner

In August, Wisconsin Examiner published a similar Flock analysis that also found agencies statewide entering only the word “investigation,” with no other descriptor, in order to access Flock. At nearly 20,000 searches (not including misspellings and abbreviations), the term “investigation” was in fact the most often used term in that analysis, which relied on audit data obtained from the Wauwatosa Police Department. 

While data from the Waukesha County Sheriff’s Department appeared in that first Flock story, that analysis focused on broad trends which appeared among at least 221 unique agencies using Flock in Wisconsin. This more recent analysis focuses specifically on the Waukesha County Sheriff Department’s use of the camera network. 

The August report found that the Waukesha County Sheriff’s Department appeared among the top 10 Wisconsin law enforcement agencies that used Flock the most. The report also found that some agencies also only entered “.” — a period — in the Flock system field to indicate the reason for using the system. The West Allis Police Department led Wisconsin in this particular search term, followed by the Waukesha Police Department and the Columbia County Sheriff’s Office. 

In response to an inquiry from the Wisconsin Examiner, a Waukesha Police Department spokesperson  said that an officer who’d conducted nearly 400 Flock searches using only “.” as the reason had been provided extra training, and that the officer’s behavior had been corrected after the Wisconsin Examiner reached out. The West Allis Police Department,  on the other hand, did not suggest that its officers were using the Flock network improperly. 

Use of vague search terms is chronic across Flock’s network, Maass has found. He recalled  one nationwide audit that covered 11.4 million Flock searches over a six-month period. Of those some 22,743 “just dots” appeared as reasons for Flock searches. Searches using only the word “investigation” made up about 14.5% of all searches, he said. 

“So yeah, that’s a problem,” Maass told the Wisconsin Examiner. Reviewing a copy of Waukesha County Sheriff’s Department audit data, Maass saw the same vague search terms that have been reported by the Examiner. Although some terms can be reasonably guessed — such as “repo” perhaps meaning repossession, or ICAC, which usually stands for Internet Crimes Against Children — others aren’t so easy. 

Surveillance cameras
Surveillance cameras monitor traffic on a clear day | Getty Images Creative

“‘Hunt’ can mean anything,” said Maass, referring to a term which appeared 24 times within the Waukesha Sheriff’s data. Maass points to the search term “f”, which the Wisconsin Examiner’s analysis found WCSD used to search Flock 806 times. 

Maass highlights that each search touches hundreds or even thousands of individual Flock networks nationwide. “If I’m one of these agencies that gets hit by this system, how am I to know if this is a legitimate search or not?” Maass said. “Now, maybe somebody at Waukesha is going through their own system, and like questioning every officer about every case. Maybe they’re doing that. Probably not.” 

Wenzel of the Waukesha County Sheriff’s Department said that although some searches appear vague,  deputies and detectives are required by department policy to document their use of Flock in reports. Although a case number category does appear in the audit data, this column was rendered blank, making it impossible for Wisconsin Examiner to determine how often Flock searches had case numbers, or whether those case numbers corresponded with specific investigations the sheriff’s department had on file. 

“The Sheriff’s Office understands the concerns surrounding emerging technology and takes very seriously its responsibility to protect the privacy and civil rights of the community,” Wenzel said in a statement. “The use of Flock license plate recognition technology is guided by clear safeguards to ensure it is only used for legitimate law enforcement purposes.” 

The department’s policy, Wenzel explained, “prohibits any use outside of legitimate criminal investigations.” He said that deputies undergo initial and ongoing training to use the camera network. “All system activity is logged and subject to review,” said Wenzel.

Maass says the department can’t back-check the searches conducted by other agencies using the Waukesha Flock network, however. “Because when we’re talking about millions of searches coming through their system, you know, every few months…like hundreds of thousands at least every month…how are they actually quality controlling any of these?” Maass told the Wisconsin Examiner. “They’re just not.”

An eviction notice posted on a door as the lock is changed.
An eviction notice posted on a door as the lock is changed. (Stephen Zenner | Getty Images)

Wenzel said that “the technology is not used for general surveillance, traffic enforcement, or monitoring individuals not connected to an investigation.” The Wisconsin Examiner’s analysis, however, detected 43 searches logged as “surveillance” and 30 searches logged as “traffic offense.” The audit data also contained at least 357 searches logged as “suspicious” or variations of the word, as well as another 14 logged as “suspicious driving behavior,” 52 searches for “road rage” and 36 logged as “identify driver”.

There were also 62 searches related to evictions, which privacy advocates contend  go beyond the public safety roles that the cameras were originally pitched to serve.

“Evictions can be unpredictable and potentially dangerous situations,” said Wenzel. “The removal of individuals from a residence often creates heightened emotions, uncertainty, and sometimes resistance. For this reason, safety is the top priority for both the residents being evicted and the deputies carrying out the court order. Flock is utilized to determine if the former tenants have left the area or could possibly be in the area when the court order is being carried out.” 

Jon McCray Jones, policy analyst for the American Civil Liberties Union (ACLU) of Wisconsin, said in a statement that the Waukesha Sheriff’s use of Flock has extended “far beyond the public safety justifications for which these tools were originally sold.” McCray Jones told the Wisconsin Examiner, “These systems were introduced to the public as a means to reduce violent crime and aid in solving serious investigations. However, when they are used for non-criminal purposes, such as evictions, they cross a dangerous line.”  

Waukesha’s uses for evictions were particularly concerning for McCray Jones. “What’s happening here is surveillance technology, operated by taxpayer-funded public servants, being weaponized at the behest of private landlords and corporations,” he said. “That is exactly the kind of mission creep communities are most worried about when it comes to police surveillance. If Flock cameras can be repurposed to target tenants today, what stops law enforcement tomorrow from using facial recognition to track people who fall behind on rent, or phone location data to monitor whether workers are ‘really sick’ when they call off? We’ve seen documented cases where law enforcement misused surveillance systems to track down romantic interests. Once the floodgate is opened, the slide into abuse is fast and quiet.” 

Wenzel said that access to the Flock network is limited to personnel who are properly trained and authorized to use the software, and the department’s policy is regularly reviewed by those personnel. 

“Searches are limited to legitimate law enforcement purposes per department policy,” he wrote in an email statement. The department has conducted its own Flock audits, Wenzel explained, and no sheriff department staff have ever been disciplined or re-trained due to Flock-related issues. Although the Waukesha County Sheriff’s Department is part of the federal 287(g) program, in which local law enforcement agencies participate in federal immigration enforcement, Wenzel said that Flock is not used as part of the program, and the Wisconsin Examiner didn’t find any clear examples of immigration-related uses by the sheriff’s department. 

McCray Jones considers the Waukesha Sheriff’s use of Flock to be an example of why “surveillance technology in the hands of law enforcement must be tightly limited, narrowly defined, and rigorously transparent.” He stressed that every use “must be clearly logged and justified — not with vague categories like ‘investigation’ or ‘repo’, but with meaningful explanations the public can actually understand and evaluate. Without strict guardrails, audits like this reveal how quickly tools justified in the name of ‘safety’ turn into instruments of convenience or even private gain.” 

With the growth of surveillance technologies and the civil liberties implications they raise, McCray Jones said that the public “deserves clear proof that it is being used only to reduce crime — particularly violent crime — and not to serve the interests of landlords or corporations. Accountability and transparency aren’t optional add-ons; they are the bare minimum to prevent abuse.”

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