The Mississippi Choctaw Indians v. Hoyfield, it was argued in January 11,1989. It was about This case involves the status of twin illegitimate babies, whose parents were enrolled members of appellant Tribe they were adopted in that county's Chancery Court by the appellees Holyfield, who were non-Indian. That court subsequently overruled appellant's motion to vacate the adoption decree, which was based on the assertion that, under the ICWA exclusive jurisdiction was vested in appellant's tribal court.