The Trump administration has pushed that boundary by deploying CBP along with ICE to cities far from any border. They are used to working in this very narrow sphere of border enforcement and immigration enforcement, which have very different responsibilities for civil rights and civil liberties and due process on an average day doing an average task. Your average state or local law enforcement officer is far more experienced in investigating crime, enforcing crime and dealing with civilians than your average ICE officer or CBP agent. Ryan Schwank, former ICE attorney and ICE Academy instructor, resigned ICE in protest of the dangerously lax training. But having said he had previous law enforcement experience likely allowed Brouillette to bypass even more of the already lax ICE training.