By The Associated Press

A judge is mulling arguments over whether she'll let the most contentious section of Arizona's immigration enforcement law take effect.

Opponents of the law told U.S. District Judge Susan Bolton at a hearing Tuesday that the provision in question will lead to racial profiling and prolonged detentions of Latinos.

The law's opponents are trying to thwart a U.S. Supreme Court ruling that will let police enforce a requirement that officers, while enforcing other laws, question the immigration status of those they suspect are in the country illegally.

Lawyers for Gov. Jan Brewer argued that opponents haven't shown that enforcement of the questioning requirement will lead to racial profiling or prolonged detentions.

Bolton didn't make a ruling on the request and didn't mention when the requirement could take effect.