Associated Press - June 15, 2010 9:34 PM ET
PHOENIX (AP) - Maricopa County Sheriff Joe Arpaio says he plans to launch his 16th crime and immigration sweep on July 30, the day after Arizona's new immigration law is set to take effect.
The sheriff's office hasn't revealed where it will conduct the sweep.
During the sweeps, deputies flood an area of a city - in some cases heavily Latino areas - to seek out traffic violators and arrest other alleged lawbreakers.
Arizona's new immigration law requires police, while enforcing other laws, to question a person's immigration status if officers have a reasonable suspicion that the person is in the country illegally.
Critics who are challenging the law have asked a judge to block enforcement of the law before it takes effect July 28.
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