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Audio intelligence: location and context from sound

Methods

Jun 8, 2026

Audio intelligence: location and context from sound

Read ambient sound, power-grid hum and acoustic signatures to establish where and when audio was recorded

Derek Bowler

Company registry research across jurisdictions

OSINT Cards

Jun 6, 2026

Company registry research across jurisdictions

Retrieve statutory filings, trace officer networks and map corporate structures using Companies House, OpenCorporates and Orbis

Derek Bowler

OPSEC

Jun 5, 2026

OPSEC for investigators: eight-step security baseline

Configure Signal, Mullvad and ProtonMail, separate investigative hardware, and document sessions to chain-of-custody standard

Derek Bowler

The Signal

Jun 4, 2026

The Signal, Issue #003

Indonesia's military disinformation traced, Armenia's FIMI documented, and the citation failure detection will not catch

Derek Bowler

Procurement database investigation: TED to Aleph

OSINT Cards

Jun 3, 2026

Procurement database investigation: TED to Aleph

Query TED, Contracts Finder and SAM.gov, read award records against company registry data and document patterns of irregularity

Derek Bowler

Source presence verification: the AI prompt method

AI in OSINT

Jun 3, 2026

Source presence verification: the AI prompt method

Build the verification checklist before the interview, not after. A structured AI prompt for testing source presence claims at scene.

Derek Bowler

Using AI tools in the verification workflow

OSINT Cards

Jun 2, 2026

Using AI tools in the verification workflow

Apply AI tools to document triage, translation, and entity extraction while maintaining chain-of-custody records to evidentiary standard

Derek Bowler

Image geolocation: methodology and workflow

Geospatial & Satellite

Jun 1, 2026

Image geolocation: methodology and workflow

Inventory visual features, query satellite and street-level imagery, and triangulate a confirmed coordinate using Google Earth Pro, SunCalc and Mapillary

Derek Bowler

Satellite pollution documentation with SAR imagery

Environmental & Climate Investigation

May 31, 2026

Satellite pollution documentation with SAR imagery

Select sensors, retrieve and hash imagery, and correlate Sentinel-1 and Copernicus CAMS data with vessel tracks to evidentiary standard

Derek Bowler