Evidex

Evidex is an AI-powered digital forensics platform that helps law enforcement analyze evidence, anchor it to blockchain, and generate court-ready reports in minutes. ID - 01D5952B049ED672

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ID - 01D5952B049ED672

Inspiration

Every day, law enforcement agencies struggle with fragmented digital evidence scattered across different tools and formats. Investigators spend hours manually analyzing log files, images, and documents while critical evidence slips through the cracks. We built Evidex because we believe digital forensics should be intelligent, unified, and accessible to every county department not just agencies with million-dollar budgets.

What it does

Evidex is an AI-powered digital forensics platform that helps law enforcement analyze, correlate, and manage digital evidence. Key features include:

  • AI Evidence Analysis: Upload any file (logs, images, documents) and get instant forensic analysis—IP extraction, metadata analysis,
    steganography detection, and threat classification
  • Encryption Detection: Real-time entropy analysis identifies encrypted or hidden content
  • Evidence Timeline: Correlate events across multiple evidence files to reconstruct criminal activity
  • Chain of Custody: Tamper-proof audit logging for court admissibility
  • Voice Transcription: Convert audio evidence to searchable text
  • Multi-Case Dashboard: Manage homicides, financial crimes, terrorism cases—all in one place

How we built it

  • Frontend: Next.js with Framer Motion for a responsive investigator dashboard
  • Backend: Node.js/Express with MongoDB Atlas for scalable case management
  • AI Analysis: Google Gemini Pro for deep forensic file analysis
  • Voice AI: ElevenLabs for audio evidence transcription
  • Security: Firebase Authentication + SHA-256 integrity verification + solana tokens based verification
  • Analytics: Snowflake-ready architecture for large-scale evidence correlation
    ## Challenges we ran into
    • MIME type handling: Different file types (.log, .txt) weren't recognized by AI APIs - we built custom normalization to ensure all evidence types are analyzable
  • Real forensic accuracy: Balancing AI capabilities with actual forensic techniques (entropy calculation, magic byte detection) that would hold up in court
  • Chain of custody: Implementing tamper-proof audit logs that meet legal evidence standards while remaining performant
    ## Accomplishments that we're proud of
  • Built a working platform that can analyze real crime scene evidence in seconds
  • Implemented genuine forensic techniques (Shannon entropy, file signature analysis) alongside AI
  • Created a system that scales from small county departments to major task forces

  • Designed for court admissibility with complete audit trails

    What we learned

  • Digital forensics requires a balance of cutting-edge AI and proven scientific methods

  • Law enforcement tools must prioritize chain of custody above all features

  • File format handling is surprisingly complex—every edge case matters when evidence is on the line

    What's next for Evidex

  • Cross-agency collaboration: Secure evidence sharing between departments

  • Mobile forensics: Direct device acquisition and analysis

  • Court report generation: One-click professional reports for prosecutors

  • Training mode: Help new investigators learn forensic analysis with AI guidance

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