The 37 Scientific Evidence of Digital Evidence Tampering on CCTV Footage at Olivier Café: The Jessica Kumala Wongso Case (2016), Carried Out by Muhammad Nuh Al-Azhar and Christopher Hariman Rianto, Who were Under the Leadership of the General Crime Director of the Jakarta Metropolitan Police, Krishna Murti, and the Chief of the Jakarta Metropolitan Police, Tito Karnavian.
EVIDENCE 6: THE LOSS OF 50 FRAMES FROM TAMPERED CCTV 7 FOOTAGE
A forensic analysis of the 50-frame discrepancy in CCTV video 7 indicated a significant impact on the integrity of the digital evidence. This frame discrepancy raised suspicions that one or both versions of the video had been manipulated or edited. During the critical timeframe when Jessica was suspected of aligning a paper bag and inserting cyanide, the presence or absence of these 50 frames could have affected the clarity of the event.
The reduction in video frames by removing 50 frames could have caused the loss of crucial details necessary to accurately understand the sequence of events. For instance, if the scenes between 16:28:40 WIB and 16:29:50 WIB were among the missing 50 frames, it could obscure vital information such as Jessica's hand movements or objects that might have been present in those scenes. Such a significant loss of visual information could cast doubt on the reliability of the evidence presented in court.
Furthermore, the discrepancy in the number of frames between the reports of Christopher Hariman Rianto and Muhammad Nuh Al-Azhar highlighted inconsistencies and a loss of integrity in the evidence presented by both forensic experts. The 50-frame discrepancy raised questions about the reliability of the digital evidence collection and presentation process in this case. This inconsistency could lead to uncertainty and doubt about the experts' testimonies and potentially influence the final decision in the trial.
The forensic impact was that the absence of the 50 frames in the downscaled video version could obscure the complete picture of events that occurred during the critical timeframe. This not only affected the court's ability to make an informed decision based on the available evidence but also cast doubt on the validity of the forensic experts' testimonies and analyses. This situation underscored the importance of maintaining the integrity of digital evidence in the judicial process to ensure that true justice is achieved.
Six fraudulent prosecutors Ardito Muwardi, Shandy Handika, Sugih Carvallo, Hari Wibowo, Wahyu Oktaviandi, and Maylany Wuwung conspired with fellow fraudulent CCTV video manipulator Muhammad Nuh Al-Azhar.
ANALYZED BY
DR.ENG RISMON H. SIANIPAR, S.T, M.T, M.ENG
AUTHOR, LECTURER, PROGRAMMER, AND COMPUTER VISION EXPERT
