I. INTRODUCTION
*1 To support the termination of parental rights, the Indian Child Welfare Act (ICWA) requires the “testimony of qualified expert witnesses” demonstrating that continued custody by the parent is likely to result in serious emotional or physical harm to the child.1 In order to satisfy this mandate, an expert's testimony must be factually grounded in the parental conduct presented in the case, contextualizing conduct within the prevailing social and cultural standards of the child's tribe.
We conclude that the expert testimony in this case failed to satisfy this standard. Because the testimony did not illuminate cultural standards related to the mother's conduct, the testimony was legally insufficient under ICWA. For this reason, we reverse the order terminating the mother's parental rights and remand for further proceedings.
II. FACTS AND PROCEEDINGS
A. Facts
Raleigh2 was born in March 2023 and tested positive for addictive substances, requiring neonatal intensive care unit treatment for withdrawal. The Office of Children's Services (OCS) filed an emergency petition, leading the superior court to adjudicate Raleigh as a child in need of aid and commit him to OCS custody. While Raleigh's father remained incarcerated or out of state and consistently refused to engage with OCS, Viva, Raleigh's mother, initially sought treatment for her opioid and stimulant use disorders. However, she was involuntarily discharged from inpatient treatment in June 2023 for rule violations and aggression. Following her discharge, Viva missed 71 scheduled urinalysis tests, failed to attend new treatment assessments, and disengaged from OCS for approximately one year. Raleigh was eventually moved to an ICWA-compliant foster home with a member of Raleigh's Tribe.3 By November 2024, Raleigh had spent nearly his entire life in OCS custody, prompting the agency to petition for the termination of parental rights.
B. Proceedings
In April 2025, the court held a one-day termination trial. Raleigh's foster parent testified that Raleigh was thriving and that the family wished to adopt him. The OCS caseworker detailed the agency's efforts, including its collaboration with the Tribe. The caseworker expressed concerns about returning Raleigh to Viva due to Viva's admitted ongoing use of marijuana, heroin, and fentanyl, as well as Viva's failure to complete treatment. In response, Viva later testified that she was receiving methadone and planned to complete a new assessment the following day.
OCS offered several witnesses in support of its termination petition,4 including two witnesses whose testimony was specifically meant to address the risk to Raleigh if returned to Viva. One witness testified as an expert in substance abuse. The other witness was offered to provide cultural context for Viva's conduct and the proposed termination, as required by ICWA.5 This expert was a member of Viva's Tribe, possessed an extensive background in regional tribal leadership, and had worked in law enforcement for several years in a village setting. Based on these qualifications and his prior experience testifying in ICWA cases, the superior court qualified him as a cultural expert without objection.
*2 The cultural expert witness testified by phone. He confirmed he had spoken with the Attorney General's office and received a packet of documents, but he did not have the documents with him. With regard to the purpose of removal of Raleigh from Viva, the expert testified that he “believe[d] there was some ... substance abuse going on,” but did not provide further detail. When the State inquired whether the parents’ behaviors aligned with the cultural norms of the Tribe, the expert indicated that the parents’ behavior was inconsistent with tribal norms primarily because they lived in or near Anchorage rather than in the village. When asked, “What is your cultural perspective on the safety risks for this toddler given the substance use?” the cultural expert testified broadly that Raleigh would “have a very difficult time coming out of the substance abuse,” noting the child would require “some major care.” The expert confirmed he did not observe either parent meeting the Tribe's expectations, but the expectations were not described. Ultimately, the witness testified that “[W]e as the Tribal Council feel that the parents are not cooperating with the rehabilitation ... [and] we have concerns to the child's safety.”
Cross-examination of the witness developed more specific information. The expert emphasized that the Tribe's primary concern is the child's safety. When asked if it is common in the village for someone to raise another's child, the witness stated the Tribe prefers parents to raise their own children. However, he noted that when parents do not follow their case plans, the Tribal Council prioritizes the child's safety. Finally, the expert testified that it is culturally important for a child to know their parents as they grow older, stating he “would definitely hope that there is maybe not physical contact but some form of staying in ... touch with the child so that the child knows who the parents are.” When asked why Raleigh had been removed from Viva's care, the expert also noted his view of the parents’ lack of engagement, testifying, “I do not believe that the parents were complying with ... the court orders let alone the OCS caseworker.”
After the hearing, the superior court terminated Viva's parental rights. The court found clear and convincing evidence that Raleigh was a child in need of aid due to parental substance use and substantial risk of physical harm.6 Relying on the expert testimony, the court found beyond a reasonable doubt that returning Raleigh to Viva would likely result in serious harm and further found, by a preponderance of the evidence, that termination served the child's best interests. The court did not order post-termination contact. The court later denied Viva's request that future contact be included in any adoption decree.
III. STANDARD OF REVIEW
Whether cultural expert testimony satisfies ICWA is a question of law that we review de novo.7 In doing so, we will determine whether the expert testimony is legally sufficient to demonstrate that returning the child to the parent's custody will likely result in serious emotional or physical harm.8
IV. DISCUSSION
*3 On appeal, Viva argues that the trial court's order terminating her parental rights must be reversed because OCS failed to present legally sufficient cultural expert testimony under ICWA. She contends that the expert lacked familiarity with the facts of the case and failed to provide relevant tribal cultural context.
Under ICWA, no termination of parental rights may be ordered in the absence of a determination, supported by evidence beyond a reasonable doubt, that the continued custody of the child by the parent is likely to result in serious emotional or physical harm to the child.9 The statute mandates that this evidentiary burden must be satisfied using the “testimony of qualified expert witnesses.”10 The evidence must establish a causal relationship between the particular conditions in the home and the likelihood of serious harm to the child.11
The purpose of requiring a cultural expert under ICWA is to ensure that a state court's child welfare determinations are informed by the prevailing social and cultural standards of the Indian child's tribe, rather than by unfounded assumptions or dominant-culture biases.12 To fulfill this mandate, the expert's testimony must be factually grounded in the issues and parental conduct presented in the case.13 Whether testimony meets the requirements of ICWA depends upon factors such as the qualifications and background of the witness, the familiarity of or preparation by the witness, and the information elicited during testimony. This case does not implicate the qualifications of the witness, who was an elder in his Tribe, engaged in Tribal matters, had a background in law enforcement, lived in the village, and had testified as a witness previously. Rather this case requires us to examine the interplay between a witness's familiarity with the case and the information actually entered into the record.14
We have previously considered cases where the cultural expert testimony was obviously robust. In the unpublished Clark J. v. State of Alaska, Department of Family & Community Services, Office of Children's Services, the witness had systematically reviewed two years of comprehensive case records, demonstrated acute familiarity with the father's history of care, and articulated precisely how that behavior constituted parental abandonment within that distinct tribal setting.15
*4 A tribal cultural expert need not possess firsthand experience with the families involved. In an unpublished opinion, Orin W. v. Department of Family & Community Services, Office of Children's Services, we considered a cultural expert witness who testified on behalf of a tribe that customarily preferred guardianship over termination.16 Although the expert did not know the parent and was not very familiar with the case, the use of hypotheticals involving parental conduct in the case elicited helpful tribal perspectives.17 Indeed, the father in Orin W. explicitly argued that the cultural expert “lacked personal knowledge of his family and of the children's tribe,”18 but we held that the expert's testimony “more than met the requisite legal standards” because the evidentiary gap was bridged by grounding her expertise in the facts of the case.19
In Orin W., the expert was presented with the specific facts of the father's “threatening behavior” and a recent incident “necessitating a DVPO.”20 The cultural expert in that case testified that under normal tribal custom, a parent's drug and alcohol use was not necessarily a reason for termination, as the tribe customarily preferred guardianship without the termination of parental rights.21 However, because the expert was presented with the specific facts of the father's threatening behavior and a recent protective order, she was able to testify that the father's specific pattern of violence disrupted this custom, rendering the traditional compliance approach unworkable.22 Because the attorneys tethered the expert's cultural knowledge to the facts of the case, she provided the “important and relevant cultural context” required by ICWA, despite her lack of personal familiarity with the family.23 Based on the facts, the testimony properly focused on proving the tribe would not excuse the behavior for cultural reasons, rather than just asking if they supported termination.
We have also considered cases where the lack of case preparation and questioning did not meet the ICWA requirements for cultural testimony. In Cissy A., a consolidated appeal evaluating the testimony of multiple tribal cultural experts, we observed a pattern where cultural experts were unfamiliar with the case files and the State's questioning consisted of broad, generic inquiries into “substance abuse, ... domestic violence, and high risk of neglect.”24 We concluded that such testimony was legally inadequate because it failed to provide a meaningful assessment of tribal standards applied to the family and instead noted universal truths, such as the importance of keeping children safe, or that substance abuse is damaging.25 This did not satisfy the requirement to provide helpful tribal context.26
This case is more like the concerns we raised in Cissy A. Although the cultural expert here had some familiarity with the case, the witness's substantive analysis of parental conduct was limited to general observations that “there was some ... substance abuse going on,” that the parents were “not cooperating,” and a conclusion that a toddler suffering from prenatal substance exposure would require “some major care.” While relevant, these statements do not establish the particularized cultural context required by ICWA. Instead of grounding the expert in the facts or issues important to the case, the State asked broad questions that predictably elicited universal concerns about child safety. The gap between these general statements and cultural perspectives was not bridged by the use of hypotheticals or questioning that would elicit potential alternate ways of addressing the behavior. For instance, the expert was never asked to evaluate a scenario mirroring Viva's clinical diagnosis of severe opioid use disorder, her missed urinalyses, or her history of hostility within the context of Tribal cultural norms regarding healing or community support.27 Merely establishing substance abuse or nonconforming social behavior, without testimony explaining why this conduct is believed by the Tribe's members to be harmful to the child, cannot prove the likelihood of harm beyond a reasonable doubt.28
*5 The guardian ad litem asserts that when the designated head of the tribal government unequivocally states that the parents are not meeting the Tribe's expectations, the court requires no further granular cultural details to reach a legal conclusion favoring termination. This argument misapprehends what ICWA requires. The statute requires the cultural expert to proactively contextualize the parent's behavior within the culture to prevent ethnocentric bias by the state court.29 If a cultural witness is merely expected to cast an up-or-down vote on whether the Tribe supports termination, without providing the underlying cultural knowledge and social standards that inform that conclusion, the state court is deprived of the context ICWA was enacted to guarantee.
When an expert possesses detailed, firsthand information about the family's engagement with the tribe, linking parental conduct to cultural standards may be straightforward. However, when an expert lacks such detailed personal knowledge, establishing the proper foundation for the expert cultural opinion becomes critical. Ultimately, the testimony must give the judge enough information about tribal cultural standards and social practices so that the judge can accurately assess whether the parent's behavior is likely to seriously harm the child. It is not enough to merely relay the tribe's view that the parent's behavior is harmful.
For the foregoing reasons, we conclude that notwithstanding the qualifications of the cultural expert witness in this case, the testimony in the record was legally insufficient under ICWA.30
V. CONCLUSION
We REVERSE and REMAND for proceedings consistent with this opinion.