Jose Pedro Hernandez Lupercio, a Mexican national who has lived in Michigan for roughly three decades, was fishing with his sons near Brethren when conservation officers approached his group for what looked like an ordinary license check. By the time the encounter ended, Hernandez Lupercio was in federal immigration custody, where he would remain for nearly four months. The episode has since become a test case for whether a state wildlife agency helped hand a father over to Immigration and Customs Enforcement, something the agency flatly rejects, according to reporting by Michigan Advance.