May a court deny a petition to invalidate a foster placement proceeding under the Indian Child Welfare Act when no qualified expert witness testified, if the parent admits to abuse/neglect?

QUESTIONS PRESENTED In a case involving the Indian Child Welfare Act (“ICWA”), 25 U.S.C. §§ 1901 — 1923 (1978), may a court deny a petition to invalidate the proceeding when a foster placement was ordered without the testimony of any qualified expert witness pursuant to § 1912(e), simply because the parent of the Indian Child admits to an underlying act of abuse or neglect in the absence of a knowing waiver? ii