Historically, ICE made relatively few arrests at homes, worksites, and other public places. Instead, “the vast majority of arrests that ICE used to conduct were really transfers of custody from a state or local authority to the federal government,” said David Hausman, a UC Berkeley Law assistant professor and the faculty director of the Deportation Data Project. As Hausman recently explained to my colleague Christian Paz, however, that norm has changed — and radically — under President Donald Trump. ICE now carries out thousands of “at-large” arrests in public.