From Arizona State Legislator:
B. For any lawful contact made by a law enforcement official or a law enforcement agency of this state or a law enforcement official or a law enforcement agency of a county, city, town or other political subdivision of this state where reasonable suspicion exists that the person is an alien who is unlawfully present in the United States, a reasonable attempt shall be made, when practicable, to determine the immigration status of the person, except if the determination may hinder or obstruct an investigation. Any person who is arrested shall have the person's immigration status determined before the person is released. The person's immigration status shall be verified with the federal government pursuant to 8 United States code section 1373(c). A law enforcement official or agency of this state or a county, city, town or other political subdivision of this state may not solely consider race, color or national origin in implementing the requirements of this subsection except to the extent permitted by the United States or Arizona Constitution. A person is presumed to not be an alien who is unlawfully present in the United States if the person provides to the law enforcement officer or agency any of the following:
1. A valid Arizona driver license.
2. A valid Arizona nonoperating identification license.
3. A valid tribal enrollment card or other form of tribal identification.
4. If the entity requires proof of legal presence in the United States before issuance, any valid United States federal, state or local government issued identification.
Beware of Nazis!