This is a trademark dispute between the federally recognized Shingle Springs Band of Miwok Indians and an unaffiliated man purporting to act as “Chief” of the “Shingle Springs Band of Miwok Indians.”
Here:
034 – Brief of Appellant Cesar Caballero(81539037_1)
040-1 – Answering Brief of Appellee Shingle Springs Band of Miwok Indians(81902896_1)
Lower court materials here.