Having now read the text of the bill, it seems the rumor about it authorizing an arrest based on reasonable suspicion is false. This is what the reasonable suspicion section says:
20 B. FOR ANY LAWFUL CONTACT MADE BY A LAW ENFORCEMENT OFFICIAL OR A LAW
21 ENFORCEMENT AGENCY OF THIS STATE OR A LAW ENFORCEMENT OFFICIAL OR A LAW
22 ENFORCEMENT AGENCY OF A COUNTY, CITY, TOWN OR OTHER POLITICAL SUBDIVISION OF
23 THIS STATE WHERE REASONABLE SUSPICION EXISTS THAT THE PERSON IS AN ALIEN WHO
24 IS UNLAWFULLY PRESENT IN THE UNITED STATES, A REASONABLE ATTEMPT SHALL BE
25 MADE, WHEN PRACTICABLE, TO DETERMINE THE IMMIGRATION STATUS OF THE PERSON,
26 EXCEPT IF THE DETERMINATION MAY HINDER OR OBSTRUCT AN INVESTIGATION. ANY
27 PERSON WHO IS ARRESTED SHALL HAVE THE PERSON'S IMMIGRATION STATUS DETERMINED
28 BEFORE THE PERSON IS RELEASED. THE PERSON'S IMMIGRATION STATUS SHALL BE
29 VERIFIED WITH THE FEDERAL GOVERNMENT PURSUANT TO 8 UNITED STATES CODE SECTION
30 1373(c). A LAW ENFORCEMENT OFFICIAL OR AGENCY OF THIS STATE OR A COUNTY,
31 CITY, TOWN OR OTHER POLITICAL SUBDIVISION OF THIS STATE MAY NOT SOLELY
32 CONSIDER RACE, COLOR OR NATIONAL ORIGIN IN IMPLEMENTING THE REQUIREMENTS OF
33 THIS SUBSECTION EXCEPT TO THE EXTENT PERMITTED BY THE UNITED STATES OR
34 ARIZONA CONSTITUTION. A PERSON IS PRESUMED TO NOT BE AN ALIEN WHO IS
35 UNLAWFULLY PRESENT IN THE UNITED STATES IF THE PERSON PROVIDES TO THE LAW
36 ENFORCEMENT OFFICER OR AGENCY ANY OF THE FOLLOWING:
37 1. A VALID ARIZONA DRIVER LICENSE.
38 2. A VALID ARIZONA NONOPERATING IDENTIFICATION LICENSE.
39 3. A VALID TRIBAL ENROLLMENT CARD OR OTHER FORM OF TRIBAL
40 IDENTIFICATION.
41 4. IF THE ENTITY REQUIRES PROOF OF LEGAL PRESENCE IN THE UNITED STATES
42 BEFORE ISSUANCE, ANY VALID UNITED STATES FEDERAL, STATE OR LOCAL GOVERNMENT
43 ISSUED IDENTIFICATION.
20 B. FOR ANY LAWFUL CONTACT MADE BY A LAW ENFORCEMENT OFFICIAL OR A LAW
21 ENFORCEMENT AGENCY OF THIS STATE OR A LAW ENFORCEMENT OFFICIAL OR A LAW
22 ENFORCEMENT AGENCY OF A COUNTY, CITY, TOWN OR OTHER POLITICAL SUBDIVISION OF
23 THIS STATE WHERE REASONABLE SUSPICION EXISTS THAT THE PERSON IS AN ALIEN WHO
24 IS UNLAWFULLY PRESENT IN THE UNITED STATES, A REASONABLE ATTEMPT SHALL BE
25 MADE, WHEN PRACTICABLE, TO DETERMINE THE IMMIGRATION STATUS OF THE PERSON,
26 EXCEPT IF THE DETERMINATION MAY HINDER OR OBSTRUCT AN INVESTIGATION. ANY
27 PERSON WHO IS ARRESTED SHALL HAVE THE PERSON'S IMMIGRATION STATUS DETERMINED
28 BEFORE THE PERSON IS RELEASED. THE PERSON'S IMMIGRATION STATUS SHALL BE
29 VERIFIED WITH THE FEDERAL GOVERNMENT PURSUANT TO 8 UNITED STATES CODE SECTION
30 1373(c). A LAW ENFORCEMENT OFFICIAL OR AGENCY OF THIS STATE OR A COUNTY,
31 CITY, TOWN OR OTHER POLITICAL SUBDIVISION OF THIS STATE MAY NOT SOLELY
32 CONSIDER RACE, COLOR OR NATIONAL ORIGIN IN IMPLEMENTING THE REQUIREMENTS OF
33 THIS SUBSECTION EXCEPT TO THE EXTENT PERMITTED BY THE UNITED STATES OR
34 ARIZONA CONSTITUTION. A PERSON IS PRESUMED TO NOT BE AN ALIEN WHO IS
35 UNLAWFULLY PRESENT IN THE UNITED STATES IF THE PERSON PROVIDES TO THE LAW
36 ENFORCEMENT OFFICER OR AGENCY ANY OF THE FOLLOWING:
37 1. A VALID ARIZONA DRIVER LICENSE.
38 2. A VALID ARIZONA NONOPERATING IDENTIFICATION LICENSE.
39 3. A VALID TRIBAL ENROLLMENT CARD OR OTHER FORM OF TRIBAL
40 IDENTIFICATION.
41 4. IF THE ENTITY REQUIRES PROOF OF LEGAL PRESENCE IN THE UNITED STATES
42 BEFORE ISSUANCE, ANY VALID UNITED STATES FEDERAL, STATE OR LOCAL GOVERNMENT
43 ISSUED IDENTIFICATION.