When a Department of Homeland Security official sent out an alert to stop Samuel Tunick, a Stop Cop City activist, at an airport in January 2025, they said the reason was because he was suspected of “terrorist activities,” according to new filed court records which include a screenshot of the alert and photos of Tunick’s interrogation.

Tunick ultimately provided Customs and Border Protection (CBP) officials with a code that, when entered, wiped his security- and privacy-focused GrapheneOS phone. Tunick is now being criminally charged for that alleged act, in one of the most high profile technology civil rights cases in recent memory.

The court records also showed that CBP officials lied to Tunick during his interrogation. Instead of saying he was being targeted for suspected terrorism — although this search happened just at the start of the second Trump administration, it has dramatically broadened what organizations or people may be considered such — they said they needed his phone to look for “kiddie porn.”

Tunick was part of the Stop Cop City movement in Atlanta, which broadly protested the building of a large police training center, and which authorities investigated for arson, vandalism, and doxing. Tunick is not suspected of any crime beyond the alleged wiping of the phone, and has previously put his current prosecution in the context of the wide spanning cases against other Stop Cop City protesters.