In recent weeks, immigration officers have arrested several people in the halls of the Milwaukee County Courthouse. Here's what we know about Dugan's arrest and the circumstances leading up to it.

Dugan previously worked for legal aid organizations and was once the Milwaukee Bar Association president. An alderman who knows her says she's the "model of public service."

Hannah Dugan, the Milwaukee County judge arrested Friday by the FBI for allegedly obstructing federal authorities who were seeking to detain an undocumented immigrant, was a longtime social justice advocate before she took the bench.