Abstract
<jats:p>Indigenous persons living on U.S. reservations remain disproportionately vulnerable to organized crime, partly due to fractured legal authority shared across federal, state, and tribal jurisdictions. These structural divides carry profound human consequences, enabling organized criminal groups to embed themselves in reservation communities and inflict harm with intergenerational impacts. Despite this, the topic remains critically understudied. Building on our research regarding missing and murdered Indigenous women, men, girls, and boys, this chapter analyses litigated legal cases revealing the emergent themes of gang infiltration through kinship networks (e.g., Red Skin Kingz, Jesus Sagaste-Cruz); delayed, reactive investigations initiated in response to violent crime (e.g., Mescalero Apache Meth Ring); and profound community harms (e.g., Sinaloan Cowboys, Native Mob). We illustrate how overlapping jurisdictional structures can delay investigations, heighten risk, and compound trauma for families and communities on Indigenous reservations. We conclude by exploring forward-looking research and policy priorities for enhancing safety across Indigenous reservations.</jats:p>