The lawsuit filed by the U.S. Department of Justice in June claims that officials in Hildale, Utah, and Colorado City have supported a campaign of intimidation against former members of the Fundamentalist Church of Jesus Christ of Latter Day Saints and denied them services.
The defendants had asked a judge to move the case to Utah to cut down on travel time and expenses for the parties and witnesses.
Prosecutors say the defense attorneys have failed to make a strong case against keeping it in Arizona.
Each side will be given 15 minutes to make arguments.
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