PERAN PENYIDIK DALAM KASUS PENYALAHGUNAAN NARKOTIKA DI WILAYAH POLRESTA YOGYAKARTANIM.: 22103040148Nadilla Afri LiaauthorNarcotics abuse is a criminal offense that continues to develop and requires investigators to carry out their role professionally in law enforcement. This study aims to analyze the role of investigators at the Yogyakarta Municipal Police (Polresta Yogyakarta) in handling criminal offenses of narcotics abuse, identify the obstacles encountered, and analyze the efforts undertaken to overcome those obstacles. This research employs an empirical juridical legal research method with a qualitative approach. The data were obtained through interviews with investigators from the Narcotics Investigation Unit of Polresta Yogyakarta and a literature review, and were analyzed using a descriptive qualitative method. The results of the study indicate that the investigators of Polresta Yogyakarta have performed their duties in accordance with the Indonesian Criminal Procedure Code (KUHAP), Law Number 2 of 2002 concerning the Indonesian National Police, and Law Number 35 of 2009 concerning Narcotics. However, several obstacles remain, including the increasingly sophisticated modus operandi of offenders, limited information, and difficulties in uncovering narcotics trafficking networks. To address these challenges, investigators conduct case development, strengthen coordination with relevant agencies, and optimize the investigation process in accordance with the applicable legal provisions.362.293 Permasalahan Narkotik, Narkoba, Narkotika dan Obat-obat Terlarang2026-06-02UIN SUNAN KALIJAGA YOGYAKARTA;FAKULTAS SYARI’AH DAN HUKUMThesis