(CNN) -- PHOENIX, Arizona (CNN) -- The Phoenix Police Department arrested 45 people during widespread protests Thursday against a controversial immigration law, police spokesman Sgt. Tommy Thompson said Friday.
But Arizona authorities haven't released the number of people who've been arrested for actually violating the state's the legislation, which went into effect in a limited form at 12:01 a.m. on Thursday.
U.S. District Judge Susan Bolton granted a temporary injunction against some of the most controversial provisions of the bill on Wednesday, including the requirement that officers check a person's immigration status while enforcing other laws.
Gov. Jan Brewer quickly countered. On Thursday, she filed an expedited appeal with the 9th Circuit U.S. Court of Appeals. It asks the court to lift the preliminary injunction and suggests a fast-track timetable that would have oral arguments on the appeal on September 13. Before then, Arizona would file a substantive brief to the court and the U.S. Department of Justice would respond.
The Justice Department is opposed to the fast-track timetable, which would essentially force the government to respond in half the time usually allotted. The department filed a response to Brewer's appeal detailing its opposition on Thursday.