MINNEAPOLIS — For days, Luis Ramirez had an uneasy feeling about the men dressed as utility workers he'd seen outside his family's Mexican restaurant in suburban Minneapolis.
They wore high-visibility vests and spotless white hard hats, he noticed, even while parked in their vehicle. His search for the Wisconsin-based electrician advertised on the car's doors returned no results.
On Tuesday, when their Nissan returned to the lot outside his restaurant, Ramirez, 31, filmed his confrontation with the two men, who hide their faces as he approaches and appear to be wearing heavy tactical gear beneath their yellow vests.
''This is what our taxpayer money goes to: renting these vehicles with fake tags to come sit here and watch my business,'' Ramirez shouts in the video.
A spokesperson for the Department of Homeland Security and Immigration and Customs Enforcement did not respond to inquiries about whether the men were federal immigration officers. But encounters like Ramirez's have become increasingly common.
As the sweeping immigration crackdown in Minnesota continues, legal observers and officials say they have received a growing number of reports of federal agents impersonating construction workers, delivery drivers and in some cases anti-ICE activists.
Not all of those incidents have been verified, but they have heightened fears in a state already on edge, adding to legal groups' concerns about the Trump administration's dramatic reshaping of immigration enforcement tactics nationwide.
''If you have people afraid that the electrical worker outside their house might be ICE, you're inviting public distrust and confusion on a much more dangerous level,'' said Naureen Shah, the director of immigration advocacy at the American Civil Liberties Union. ''This is what you do if you're trying to control a populace, not trying to do routine, professional law enforcement.''