Here is the opinion in In the Matter of M.S.
The court’s syllabus:
The Puyallup Tribe of Indians moved to transfer jurisdiction of a case involving two Puyallup Tribe Indian children to tribal court or, in the alternative, to change placement to a tribal member after the termination of the parental rights of their parents. The trial court denied relief, finding “good cause” for denying transfer existed because of the length of time the State had exercised jurisdiction prior to the Tribe’s motion, the relationships the children had developed and the relevant evidence located in Oklahoma. The Tribe appealed, and the Court of Civil Appeals affirmed. This Court previously granted certiorari.