Numbers 35:24-25

24then 1the congregation shall judge between the one who fatally struck the victim and the blood avenger in accordance with these ordinances.

25And the congregation shall save the one who committed manslaughter from the hand of the blood avenger, and the congregation shall return him to his city of refuge to which he fled; and he shall live in it until the death of the high priest who was anointed with the holy oil.