Hennepin County Attorney Mary Moriarty announced an investigation into 17 incidents that may lead to criminal charges against federal immigration officers, including Border Patrol official Greg Bovino, for alleged misconduct during an enforcement crackdown in Minnesota. The announcement asserts local prosecutorial authority over federal enforcement conduct, while the Department of Homeland Security rejects that premise and claims states cannot prosecute federal officers. The resulting federal-state conflict could determine whether local communities can use criminal law to constrain federal immigration tactics on their streets.