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Maricopa County Attorney's Office HeadquartersWelcome to the official website of the Maricopa County Attorney’s Office, serving nearly four million residents in Maricopa County, the fourth largest county in the United States.

Our office is responsible for the prosecution of more than 35,000 felony criminal cases each year. Our top priorities are to hold criminals accountable for the crimes they commit, and to ensure that the rights of crime victims are honored and respected throughout the criminal justice process.

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From Shred-A-Thons to Safety Forums, find all the upcoming events with the MCAO.

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MCAO Protocol for Officer-Involved Shootings

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