TRACE-Graph: Multi-Source Suspect Link Visualizer

Abstract TRACE-Graph is an investigation-support tool for law enforcement agencies in Bangladesh (CID, DB, CTTC, Cyber Crime Unit). It combines digital data from multiple sources such as SIM/CDR, mobile financial services (MFS), social media identifiers, and device logs. The system creates a clear visual connection graph to help investigators quickly understand suspect networks. TRACE-Graph reduces manual work, improves evidence clarity, and generates case reports faster. Introduction Cybercrime investigations in Bangladesh often involve data from many separate sources. Investigators must manually compare phone records, wallet transactions, social media activity, and device traces. This process is slow and may miss important links. TRACE-Graph helps investigators by organizing and visualizing these connections in one system.This Idea is Presented and become the Champion at the Cyber Security Awareness Day 2025 (CSAD 2025) Idea Presentation competition held at Daffodil International University.