ICE Used Palantir Database to Track Maine Protesters
Court filings show ICE used Palantir database to track protesters in Maine.
Why it matters: Legal professionals should note how government use of advanced surveillance tech risks civil liberties and may increase regulatory and litigation exposure related to data privacy and protester monitoring.
- ICE and DHS collected photos, license plates, and personal data on Maine protesters and stored them in Palantir’s Investigative Case Management (ICM) database.
- During January 2026’s "Operation Catch of the Day," DHS labeled some protesters as 'Threat to Law Enforcement, Professional Protestor' and used facial recognition via Mobile Query app.
- Intimidation tactics included drive-bys of protesters’ homes and repeated secondary inspections at border crossings through January 2027.
- Palantir secured a five-year, $96 million contract in 2022 for ICM support and added $30 million in 2025 to develop the Immigration Lifecycle Operating System (Immigration OS).
Newly unsealed court filings reveal the U.S. Department of Homeland Security (DHS) and Immigration and Customs Enforcement (ICE) collected detailed information on individuals observing ICE activities in Maine. This data included photos, license plate numbers, and other personal details, which were stored in Palantir's Investigative Case Management (ICM) database—a platform designed to aggregate and analyze law enforcement data.
In January 2026, during an operation dubbed "Operation Catch of the Day," DHS agents labeled some protest observers as "Threat to Law Enforcement, Professional Protestor." These labels and personal data were entered into ICM. Additionally, agents used the Mobile Query app to perform facial recognition checks by sharing observer photos with Customs and Border Protection (CBP) officers, as detailed in the filings.
Surveillance extended beyond data collection to intimidation efforts. Agents reportedly conducted drive-bys of protesters’ homes and targeted at least one individual with repeated secondary inspections at border crossings, with these incidents continuing as recently as January 2027.
Palantir has had a significant role in these efforts. The company secured a five-year contract valued at up to $96 million in 2022 to support the ICM platform. In 2025, an additional contract worth $30 million funded development of the Immigration Lifecycle Operating System (Immigration OS), a Palantir software tool designed to track undocumented immigrants and expedite deportation processes.
JoAnna Suriani, an attorney with Protect Democracy, criticized these surveillance and intimidation tactics, stating, "The government is treating people who exercise their First Amendment rights and seek to hold it accountable as criminal suspects, and that's what we're asking the court to stop."
The court documents and related reporting raise urgent legal questions about privacy, constitutional rights, and government overreach. For legal professionals, these developments signal potential compliance scrutiny and heightened litigation risk tied to government surveillance technologies and data handling practices.
By the numbers:
- $96 million — value of Palantir’s five-year contract for ICM support starting in 2022
- $30 million — additional 2025 contract for developing Immigration Lifecycle Operating System
- January 2026 — date of "Operation Catch of the Day" labeling protesters for surveillance
Yes, but: While the filings reveal significant surveillance activity, some specific details—such as the exact number of individuals targeted or the full scope of Palantir’s technical role—remain undisclosed in public documents.
What's next: The legal challenge filed by Protect Democracy seeking to halt this surveillance and intimidation is ongoing, with court decisions expected to clarify permissible government use of such tracking technologies.