The Court of Appeal vacates the juvenile court’s findings at jurisdiction and disposition that ICWA does not apply. The court finds that after the initial investigation into Indian heritage by the Department was conducted and the social worker had reason to believe the child was an Indian child, the duty of further inquiry set forth in WIC 224.2(e) was triggered. On remand, the Department must conduct a further inquiry and the juvenile court must determine whether the further inquiry was adequately and diligently conducted.