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How ICE's surveillance system works

Sam Denby exposes a surveillance loophole so brazen it makes federal overreach look like an afterthought: ICE is tapping into local camera networks in sanctuary cities through private companies, bypassing state laws with alarming ease. His evidence? Internal logs showing federal agents scanning faces at protests and misidentifying citizens as grounds for arrest—tools quietly perfected since the administration’s first 100 days, when the 2017 travel ban ignited ICE’s operational expansion.

The Glenwood Springs Paradox

Denby masterfully unpacks how Colorado’s immigrant-friendly Glenwood Springs—where police use Flock Safety cameras daily to solve assaults and sex crimes—unwittingly became an ICE surveillance hub. He reveals the town’s fatal flaw: while operating the cameras, they don’t own them. Flock Safety, the VC-backed startup, controls the data. Sam Denby writes, "The city’s attorney stated that the terms of their contract with Flock meant they 'can’t completely control what Flock does with data from Glenwood’s system.'" This contractual black hole let ICE slip in via cooperative out-of-state departments, accessing 500,000+ searches in January 2025 alone. Denby’s reporting on the Lowe’s parking lot cameras—private, unregulated, and invisible to public oversight—lands like a gut punch. He’s not just describing tech; he’s showing how corporate partnerships hollow out "sanctuary" promises. Critics might argue this data sharing catches violent criminals, but Denby’s evidence of searches logged as "TBD" or "0" exposes a system ripe for abuse, like the Kansas police chief who stalked his ex 228 times. This isn’t hypothetical overreach; it’s documented chaos.

"ICE does not provide the opportunity for individuals to decline or consent to the collection and use of biometric data."

Mobile Fortify’s Constitutional Crisis

Denby then pivots to ICE’s facial recognition app, Mobile Fortify, where the surveillance state’s fragility becomes dangerous. He dissects the Woodburn, Oregon raid where an officer admitted probable cause rested on two shaky pillars: the woman spoke Spanish, and the app misidentified her twice. As Sam Denby puts it, "The officer himself admitted that the app misidentified the woman at least once, potentially twice, meaning he was solely relying on knowingly faulty information." This isn’t just bad tech—it’s a legal time bomb. Denby connects airport biometric scans (ramped up during the the president era’s border crackdowns) to protest surveillance, noting non-citizens’ photos are stored 75 years while citizens’ are kept 15 years. His reporting on the Minneapolis legal observer—named by ICE agents, then stripped of TSA PreCheck—proves data flows beyond immigration enforcement. The core argument? Mobile Fortify isn’t a precision tool; it’s a probable cause generator for unconstitutional stops. This lands because Denby shows how the app fails in real-world chaos: shaky hands, poor lighting, evasive subjects. He overlooks, however, that some jurisdictions now ban such apps—but his point stands: where allowed, they’re weaponized.

How ICE's surveillance system works

Bottom Line

Denby’s greatest strength is exposing the systemic vulnerability: ICE doesn’t need Congress to build a surveillance state when corporate contracts and lax oversight hand it one. His biggest risk is underplaying bipartisan momentum for reform—but the Woodburn raid evidence makes complacency feel naive. Watch whether states like Colorado close the private-camera loophole before the next protest cycle.

Deep Dives

Explore these related deep dives:

  • The Age of Surveillance Capitalism Amazon · Better World Books by Shoshana Zuboff

    How tech companies turned human experience into raw material for prediction and control.

  • First 100 days of the first Trump presidency

    Trump's first 100 days established the executive orders and enforcement priorities that built ICE's expanded surveillance apparatus, setting precedents the article traces through the current system.

  • Boston Trust Act

    Explains the specific state law prohibiting local police cooperation with ICE that Flock Safety data sharing circumvents.

  • Mutual aid

    Details how inter-departmental data sharing agreements create legal loopholes for federal agencies to bypass local sanctuary policies.

Sources

How ICE's surveillance system works

This is an AI enabled license plate reading surveillance camera. And in a convoluted way, the US's Federal Immigration and Customs Enforcement Agency, more commonly known as ICE, has been able to access its data. That's despite that the town whose police department operates this camera, Glenwood Springs, is about as far from supportive of ICE as any. Glenwood voted 2:1 for Kla Harris in the 2024 election and is home to a large immigrant population with about a third of residents speaking Spanish within their household.

It's also in Colorado, whose majority blue voter base supported the passage of a statewide law explicitly prohibiting local police departments from sharing data or cooperating with federal immigration authorities. But while this camera is operated by the local police department and primarily used by the local police department, it's not actually owned by them. It's owned by a fast growing venture capital backed startup called Flock Safety. The town then pays an annual fee of $375,000 to be able to access its data.

And that data is apparently useful. Through the included software suite, they're able to go back in time and check where, when, and if a particular vehicle passed through their streets or add a license plate to a hot list to get an alert when it appears, allowing for the occupants's arrest. Internal logs show the department uses the cameras just about daily to investigate anything from assault to stalking to sex offenses. And Glenwood PD reports these searches have been instrumental in a number of successful cases like arresting a gang member from California in a stolen vehicle.

a wanted felon suspected of elder abuse or a pedophile who lured a child to the town from Oregon. What makes Glenwood's cameras more useful than most is the fact that Interstate 70 passes through the town, meaning thousands of cars on journeys both long and short drive through their view each day. That's why police departments from around the country want access to their data. There's every chance a local suspect from just about anywhere fled by Interstate 70 in an attempt to get far away fast.

So Glenwood opted in to data sharing agreements with police departments around the country. Basically, through the press of a couple buttons, other police departments could now search Glenwood's data, and Glenwood could do the same with theirs. But that's how ICE ...