Arizona is not a sanctuary state. It is one of the strongest anti-sanctuary states in the country, with a statute that forbids any city, county, or state agency from limiting cooperation with federal immigration enforcement, and that requires police to check immigration status during lawful stops when they have reasonable suspicion that someone is in the country unlawfully.1Arizona Legislature. Arizona Code 11-1051 – Cooperation and Assistance in Enforcement of Immigration Laws; Indemnification The U.S. Department of Justice’s list of sanctuary jurisdictions names states such as California, Illinois, New York, and Colorado. Arizona sits at the opposite end.2U.S. Department of Justice. Justice Department Publishes List of Sanctuary Jurisdictions
The Statewide Ban on Sanctuary Policies
Arizona Revised Statutes § 11-1051 prohibits any state or local official, agency, or political subdivision from restricting the enforcement of federal immigration laws below the full extent federal law allows. No city council, county board, or police chief in the state can adopt a policy telling officers to ignore immigration status or refuse to cooperate with Immigration and Customs Enforcement.1Arizona Legislature. Arizona Code 11-1051 – Cooperation and Assistance in Enforcement of Immigration Laws; Indemnification
The ban is enforced by lawsuit. Any legal resident of Arizona can sue a government entity in superior court for adopting or maintaining a sanctuary-style policy. If the court finds a violation, the entity faces a civil penalty of at least $500 and up to $5,000 for every day the policy stayed in effect after the suit was filed.1Arizona Legislature. Arizona Code 11-1051 – Cooperation and Assistance in Enforcement of Immigration Laws; Indemnification Local officials who might otherwise consider a sanctuary approach face financial exposure not just from the state but from any resident willing to walk into court.
What Police Must Do During Stops and Arrests
During any lawful stop, detention, or arrest, an Arizona officer who develops reasonable suspicion that the person is in the country unlawfully must make a reasonable attempt to verify immigration status. Anyone who is actually arrested must have their status verified before release. Verification runs through federal databases under 8 U.S.C. § 1373(c).1Arizona Legislature. Arizona Code 11-1051 – Cooperation and Assistance in Enforcement of Immigration Laws; Indemnification
The statute sets limits. Officers cannot use race, color, or national origin as a basis for suspicion except to the extent the U.S. or Arizona Constitution permits. And a person is presumed lawfully present if they can show a valid Arizona driver’s license, a state-issued ID, a tribal enrollment card, or any government-issued ID that required proof of legal status before it was issued.1Arizona Legislature. Arizona Code 11-1051 – Cooperation and Assistance in Enforcement of Immigration Laws; Indemnification An Arizona driver’s license alone should resolve the question at a traffic stop.
This “show me your papers” provision was the one piece of SB 1070 that survived the 2012 Supreme Court challenge in Arizona v. United States. The Court struck down three other provisions of that law as preempted by federal immigration law, but left the status-check requirement in place.3Justia Law. Arizona v United States, 567 US 387 (2012)
Mandatory Information Sharing With ICE
Beyond individual encounters, § 11-1051 bars any Arizona official or agency from being prohibited from sending, receiving, or maintaining information about a person’s immigration status, or from sharing that information with other government entities. That mirrors the independent federal requirement in 8 U.S.C. § 1373.4Office of the Law Revision Counsel. 8 USC 1373 – Communication Between Government Agencies and the Immigration and Naturalization Service
When someone convicted of a state or local offense is released from jail or finishes paying their fines, ICE or Customs and Border Protection must be notified immediately if the person is unlawfully present.1Arizona Legislature. Arizona Code 11-1051 – Cooperation and Assistance in Enforcement of Immigration Laws; Indemnification The pipeline from local booking to federal removal proceedings is built into the statute, with no gap where a local official could quietly decline to call federal authorities.
Some Arizona agencies go further through formal 287(g) agreements with ICE, under which trained local officers can perform immigration enforcement functions inside jails, including identifying removable people already in custody.5Immigration and Customs Enforcement. Delegation of Immigration Authority Section 287(g) Immigration and Nationality Act
Proposition 314 and What It Would Add
In 2024, Arizona voters approved Proposition 314, the “Secure the Border Act.” The measure creates new state-level immigration crimes, but its criminal provisions cannot be enforced until a similar law in Texas or another state has survived legal challenge for at least sixty consecutive days.7Arizona Legislature. Proposition 314 Analysis
If activated, Proposition 314 would:
Deportation has historically been a federal function, and that last provision is the one most likely to be tested in court if the trigger is ever met.
Employer Rules: Mandatory E-Verify
Arizona’s anti-sanctuary posture reaches into hiring. Under the Legal Arizona Workers Act, every employer in the state has been required to use the federal E-Verify system for all new hires since December 31, 2007.8Arizona Attorney General’s Office. For Employers Completing the federal I-9 form alone does not satisfy the state requirement.
Penalties escalate quickly. A first violation for knowingly hiring an unauthorized worker triggers a three-year probationary period at the business location, mandatory termination of all unauthorized employees, a sworn affidavit of compliance filed with the county attorney, and possible suspension of business licenses for up to ten days. A second violation at the same location means permanent revocation of all business licenses tied to that location. Employers who use E-Verify in good faith get a rebuttable presumption that they did not knowingly hire an unauthorized worker. Skip E-Verify and that shield disappears.9Arizona Legislature. Arizona Code 23-212 – Knowingly Employing Unauthorized Aliens; Prohibition
How Arizona Differs From a Sanctuary State
In sanctuary jurisdictions, local police may be prohibited from asking about immigration status, honoring ICE detainer requests, or notifying federal authorities when an undocumented person is released from custody. In Arizona, officers are required to check status during qualifying encounters, agencies must share information, and anyone convicted of a state crime who is unlawfully present must be reported to ICE before release. The policies run in opposite directions.
Arizona’s current framework does carry legal risk at its edges. The 2012 Supreme Court decision drew a line against states building a parallel criminal immigration code, and Proposition 314 pushes directly against that line, which is why its drafters tied activation to another state’s law surviving court challenge first. The state’s intent, though, is not in doubt: cooperation with federal immigration enforcement is treated as mandatory, not optional, at every level of government in Arizona.