(Reuters) — Police in Cleveland say they aim to avoid mass arrests at the protests planned for next week’s Republican National Convention, but preparations by the city’s courts to process up to 1,000 people a day have some civil rights activists worried.

Thousands of people from across the country are expected in the city to protest the expected presidential nomination of New York businessman Donald Trump, who has vowed to build a wall along the U.S.-Mexico border and restrict immigration from countries with large Muslim populations if elected.

Supporters and opponents of Trump have clashed at several of his campaign events.

Police have vowed to honor protesters’ rights of free expression, which are protected by the First Amendment of the U.S. Constitution, and avoid mass arrests.

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