The federal lawsuit will name the U.S. Department of Homeland Security, the U.S. Marshals Service and the Federal Protective Service, three agencies that have had a role in stepped-up force used against protesters since early July. The state plans to file the lawsuit Friday night.

According to DOJ spokeswoman Kristina Edmunson, the suit will accuse the agencies of engaging “in unlawful law enforcement in violation of the civil rights of Oregon citizens by seizing and detaining them without probable cause.”

State attorneys will ask a judge to issue a temporary restraining order that “would immediately stop federal authorities from unlawfully detaining Oregonians,” the DOJ said in a release.