HRA prepared an expert report and provided deposition testimony for a case involving the blood quantum of a tribal member. Descendants of the member had charged the Yavapai-Prescott Indian Tribe’s tribal government with changing their ancestor’s blood quantum. Working on behalf of the tribe, HRA investigated the history of tribal membership rolls compiled in 1960 and 1975. HRA’s report examined how the rolls were created and how practices for reporting blood quantum and tribal affiliation changed over time.