During past sweeps, deputies often flooded heavily Latino areas to round up traffic violators and make arrests of other alleged lawbreakers, The Arizona Republic reported Wednesday.
Under the new rules, which go into effect July 28, officers enforcing other laws will be allowed to question a person's immigration status if they have a reasonable suspicion the person is in the country illegally, the newspaper said.
Arpaio, the Maricopa County Sheriff, has conducted 15 such sweeps in the past, drawing criticism from civil rights advocates.
Groups challenging the new law have asked a judge to block the implementation of the new law, the Republic reported.
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