Open-Source Investigations Unit
We document potential violations of international humanitarian law using open-source methods: visual verification, satellite and geographic analysis, timeline reconstruction, and field testimony — publishing our full methodology alongside every investigation.
Investigations
Our published open-source investigations documenting strikes on civilians, medical facilities, heritage sites, and residential neighborhoods — each with a full visual-verification methodology.
Browse investigationsOSINT Tools Database
A verified directory of 471 open-source intelligence tools across 49 categories — the same tools our investigations team uses for verification, geolocation, and research.
Explore the toolkitDigital Archiving
A partner-supported archiving operation that has processed 253,624 messages and 903 satellite images to build capacity for local and international human rights organizations.
See how it worksEvery tool in the database carries an evidence-based review tag. Read our tool-verification methodology (OTVS v1.0)
How We Verify
Satellite & geographic analysis
Timeline reconstruction
Visual & video verification
Field testimony