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Code Four

Active

Modernizing the police workflow.

Spring 2025Founded 20253 peopleSan Francisco, CA, USA

About

Code Four slashes the administrative burden on law enforcement through AI-driven automation. Officers spend up to a third of their shifts manually transcribing body camera footage, creating inaccuracies, reducing transparency, and cutting into frontline duties. We're here to eliminate these inefficiencies by integrating with body cameras, record management systems, and digital evidence management systems—acting as a software layer for data processing. We free the most overworked and underappreciated people in the world: police officers.

From their website

codefour.us
SaaSSubscription · $50 per officer per month

Code Four provides an AI platform designed for law enforcement to streamline investigations, report writing, and field capture. It ingests body-worn camera data to generate AI-powered reports, enables video search across transcripts and narratives, and supports mobile field capture, all integrated with existing workflows.

The platform ingests audio, video, and metadata from body-worn cameras to create narratives and ready-to-file reports. It offers INSIGHTS for searching body-cam footage, transcripts, entities, narratives, and case timelines within a single investigative workspace. Flash enables mobile field capture for voice notes, photos, and report prompts while on scene. Reports are generated with AI assistance and officer review, preserving officer ownership and a verifiable chain of custody with encryption and CJIS-aligned security. The product emphasizes quick processing of hours of footage into minutes with results in seconds and integrates with RMS/CAD systems.

Who it’s for: Law enforcement departments and agencies seeking faster report writing, investigative collaboration, and mobile field capture.

Features
  • AI-powered report generation
  • Video and transcript search across cases
  • Mobile field capture and prompts
  • Narratives, case timelines, and entities in one workspace
  • End-to-end encryption and CJIS-compliant security
  • RMS/CAD integration
  • Support for 40+ languages

Case studies and testimonials; enterprise security/compliance emphasis; ongoing demo requests

Founders · 2

George Cheng
George ChengFounder
MIT

AI/CS + Brain & Cog Sci @ MIT

Dylan Nguyen
Dylan NguyenFounder
MIT

Building the Future of Law Enforcement Tech | Applied Math + CS @ MIT

Launch

Launched on Y Combinator · May 2025
View launch post ↗

Code Four handles paperwork and frees officers from administrative burdens.

Code Four automates transcription, redaction, and narrative autofill to streamline police video workflows. It provides real-time search, CJIS-compliant masking, and plug-and-play integrations for body cameras, evidence lockers, and RMS/CAD systems, aiming to reduce desk time and speed investigations for law enforcement agencies.

GovernmentArtificial IntelligenceGovTechComputer Vision

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