CHICAGO (AP) — A senior Border Patrol official who has become the face of the Trump administration’s immigration crackdowns in America's big cities appeared in court Tuesday to take questions about the Chicago-area enforcement operation, which has produced more than 1,800 arrests and complaints of excessive force .

The hearing comes after a judge earlier this month ordered uniformed immigration agents to wear body cameras, the latest in a lawsuit brought by news outlets and protesters who say federal agents used excessive force, including tear gas , during protests against immigration operations.

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