The need for effective digital forensic tools to assist law enforcement agencies in investigating criminal activities has increased due to the rapid growth of digital communication platforms. This research compares forensic software techniques used in the Android-based IMO Messenger application, specifically focusing on the Association of Chiefs of Police (ACPO) and National Institute of Justice (NIJ) frameworks. The tools used for examination are MOBILEedit Forensic Express and Autopsy. The evidence obtained includes chat logs, user IDs, data deletions, and group conversations based on digital data extracted from IMO Messenger tokens on Android smartphones. The aim of this study is to collect video evidence in cases of body shaming using the ACPO and NIJ) frameworks with testing tools MOBILedit Forensic Express Pro and Autopsy. Based on the search results, MOBILedit Forensic Express Pro achieved a 91.66% extraction rate. In contrast, using Autopsy yielded an extraction efficiency of 8.33%. The NIJ framework is considered the best because it supports the investigative process with the most comprehensive steps in investigating cases of body shaming using mobile forensic tools, thus yielding extractable results. Video has been identified as the best form of digital evidence that can be used to support legitimate legal claims. The findings of this research contribute to advancing mobile forensic knowledge in cases of physical shaming or cyberbullying within the ACPO and NIJ frameworks, benefiting investigators.

Keywords- Association of Chief Police Officers, Cyberbullying, Digital Investigation, IMO Messenger, Mobile Forensic, National Institute of Justice.