U.S. District Court Judge Susan Bolton issued a preliminary injunction preventing several sections of Arizona’s new immigration law from going into effect tomorrow as scheduled, at least pending the court’s ability to hear the full case. According to the Arizona Republic the provisions that have been supsended include:

• The portion of the law that requires an officer make a reasonable attempt to determine the immigration status of a person stopped, detained or arrested if there’s reasonable suspicion they’re in the country illegally.

• The portion that creates a crime of failure to apply for or carry “alien-registration papers.”

• The portion that makes it a crime for illegal immigrants to solicit, apply for or perform work. (This does not include the section on day laborers.)

• The portion that allows for a warrantless arrest of a person where there is probable cause to believe they have committed a public offense that makes them removable from the United States.

The Obama administration has filed a federal lawsuit to have the Arizona statute overturned, at least partly on preemption grounds. They had hoped to win this injunction to keep it from being implemented first.