People directly concerned with the lawsuit acted as chunin, in principle, and if both parties to a suit lived in the same area, a magnate in the area usually played the part of chunin.
中人は原則として訴訟と直接関係の人物が務め、訴訟当事者双方が同地域の住人ある場合には、当該地域の有力者が立つことが多かった。