Abstract: : The implementation of investigations conducted by the Naval Military Police into cases of premeditated murder committed by Indonesian Navy (TNI AL) personnel within the jurisdiction of the Banjarmasin Naval Military Police Detachment (Denpomal Lanal Banjarmasin) has attracted considerable public attention, particularly regarding the case conference and crime scene reconstruction procedures. This study aims to analyze the implementation of the investigation based on the Military Criminal Procedure Law as regulated under Law Number 31 of 1997 concerning Military Courts, as well as to examine the obstacles encountered by investigators during the investigation process. This research employed a socio-legal (juridical-sociological) approach with a descriptive research design. The data were obtained through interviews with investigators of the Banjarmasin Naval Military Police as key informants and supported by library research involving statutory regulations, legal literature, official documents, and other relevant legal materials. The collected data were analyzed using a descriptive qualitative method by correlating empirical findings with the applicable legal provisions. The findings indicate that the investigation was conducted in accordance with the stages of the Military Criminal Procedure Law as stipulated in Law Number 31 of 1997 concerning Military Courts, commencing from the receipt of the initial report through the submission of the case file to the Military Prosecutor (Oditur Militer). Differences in perception among investigators, the victim's family, and media reports concerning the case conference and crime scene reconstruction stemmed from differing understandings of the investigators' considerations in maintaining the effectiveness of the investigation, the confidentiality of investigative strategies, evidentiary interests, the findings of the visum et repertum, and ethical considerations. The study also reveals the absence of specific regulations governing the mechanism for conducting case conferences, indicating the need for clearer regulatory provisions to ensure legal certainty and minimize differences in perception during the investigation process. Furthermore, technical (operational), infrastructure, and sociological obstacles were identified; however, these challenges were successfully addressed through investigators' professionalism, effective inter-agency coordination, and the optimal utilization of available resources.

Keywords: Case Conference; Crime Scene Reconstruction; Investigation; Military Police;
                  Premeditated Murder