Reformulasi Kualifikasi Saksi Ahli sebagai Jaminan Hak atas Peradilan Yang Adil dalam Perspektif Hukum Tata Negara

Nabilla Farah Quraisyta
Noval Khoirul Fatta

Jurnal Hukum dan Sosial Politik
Vol. 4 No. 3 (2026): Agustus Jurnal Hukum dan Sosial Politik

Expert witnesses constitute a crucial component in the evidentiary system of judicial proceedings in Indonesia, particularly in cases requiring technical and scientific expertise. However, the regulation concerning the qualifications of expert witnesses remains unclear and lacks comprehensive standards, resulting in a normative gap in judicial practice. This study aims to analyze the regulation of expert witness qualifications within the Indonesian legal system and to examine the responsibility of the state in ensuring legal certainty regarding their use from a constitutional law perspective. The research employs a normative juridical method using statutory, conceptual, and case approaches. The findings indicate that the absence of clear qualification standards for expert witnesses leads to increased judicial subjectivity, disparities in court decisions, and potential violations of the fair trial principle as part of constitutional rights. Therefore, a reformulation of expert witness regulations is necessary through the establishment of qualification standards, certification mechanisms, and the strengthening of the state’s role in ensuring legal certainty and justice in judicial proceedings