Arizona immigration law decision:
I. What is enjoined
1. Requiring verification of immigration status: Requiring that an officer make a reasonable attempt to determine the immigration status of a person stopped, detained or arrested if there is a reasonable suspicion that the person is unlawfully present in the United States, and requiring verification of the immigration status of any person arrested prior to releasing that person.
Reasoning: Pre-empted by federal law because it creates an additional burden on the federal government by increasing the number of immigration-verification requests to the federal government.
2. Failure to carry immigration papers: Creating a crime for the failure to apply for or carry alien registration papers.
Reasoning: Pre-empted as an impermissible attempt to create its own state immigration scheme by altering the penalties established by Congress under the federal registration scheme.
3. Illegal for an illegal to solicit work: Creating a crime for an unauthorized alien to solicit, apply for or perform work.
Reasoning: Pre-empted because there is a comprehensive federal scheme regulating employment of illegal immigrants.