SACRAMENTO, Calif — California Governor Gavin Newsom has signed a law banning law enforcement from wearing masks on duty except for things like riot gear, medical masks and undercover work.

Saying it’s the first bill of its type in the country, Newsom — a Democrat and frequent critic of President Trump — said it was a sign of growing authoritarianism to have detentions in by masked men “hidden from accountability, any transparency, any oversight. That’s Trump’s America.”