N.Y. Indian Law § 50

§ 50. Appeals to council of Seneca nation. Within twenty days after\nthe decision of a peacemakers' court of the Seneca nation, an appeal may\nbe taken to the council of such nation, by serving upon the adverse\nparty and upon the peacemakers before whom the action or proceeding was\nheard a notice of such appeal. The peacemakers shall certify the\nevidence taken before them to the council. The appeal shall be heard by\nat least a quorum of the council, and shall be decided upon the evidence\ntaken in the peacemakers' court, and such additional evidence as the\ncouncil may determine to hear. Upon the hearing any party shall have the\nright to appear either in person or by counsel and argue the merits of\nthe case. The decision of the council shall be conclusive.\n