posse

Under normal circumstances, the Posse Comitatus Act of 1878 bars the U.S. military — including National Guard troops called into federal service — from taking part in domestic law enforcement.

She watched the cheerleaders and the veterans, the posse of sheriff’s deputies and the firetrucks, the passing faces in the crowd.

You have sections addressing the era of slavery and Reconstruction, the "Posse Comitatus" movement and the recent phenomenon of the "constitutional sheriff."

You begin in the 1970s with the Posse Comitatus movement, which then led to the "constitutional sheriff" movement.

The founder of the Posse Comitatus movement, among other people, worked to promote this idea that sheriffs are this last line of defense against the overreach of the federal government.