This study is motivated by the limited evaluation of diversion policies as a manifestation of the ultimum remedium principle in handling children in conflict with the law at the regional level. It aims to: (1) assess the implementation of diversion policies in Buton Regency; and (2) formulate policy recommendations for law enforcement agencies, local governments, and relevant stakeholders to optimize diversion practices from legal, institutional, and social perspectives. This research employs a socio-legal approach, examining law as both law in books and law in action, with a focus on the practical implementation of diversion by investigators at the Women and Children Protection Unit (PPA Unit) of the Buton Resort Police. The findings indicate that the application of the ultimum remedium principle has aligned with restorative justice principles as stipulated in Law Number 11 of 2012 on the Juvenile Criminal Justice System and reinforced by Law Number 1 of 2023 on the Criminal Code. Diversion has become the primary mechanism for resolving juvenile cases, involving the UPTD PPA of Buton Regency. However, its effectiveness remains limited, as evidenced by 2024 data showing that only 4 out of 28 cases were successfully resolved through diversion. This study contributes by offering a local-level evaluation model of diversion policy based on the ultimum remedium principle and proposing strategic recommendations to enhance inter-agency coordination in child protection. The findings are expected to serve as both academic and practical references for improving juvenile justice policy in Indonesia.