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SIGNAL & SHADOW · ARCHIVE

Methods

Step-by-step tutorials drawn from working casework.

All Posts

Audio intelligence: location and context from sound

Methods

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Jun 8, 2026

Audio intelligence: location and context from sound

Derek Bowler

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Chronolocation video: establishing when footage was filmed

Methods

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May 18, 2026

Chronolocation video: establishing when footage was filmed

Derek Bowler

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Pinpointing location through visual clues: shadows, architecture and terrain

Methods

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May 4, 2026

Pinpointing location through visual clues: shadows, architecture and terrain

Derek Bowler

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Investigator welfare: managing stress, trauma and burnout

Methods

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May 1, 2026

Investigator welfare: managing stress, trauma and burnout

Derek Bowler

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Legal and ethical boundaries of OSINT: GDPR, data minimisation and defensible collection

Methods

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Apr 20, 2026

Legal and ethical boundaries of OSINT: GDPR, data minimisation and defensible collection

Derek Bowler

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Investigating yourself: the OSINT dry run on your own digital footprint

Methods

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Apr 6, 2026

Investigating yourself: the OSINT dry run on your own digital footprint

Derek Bowler

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Clean research browser: Firefox and Mullvad for OSINT

Methods

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Mar 23, 2026

Clean research browser: Firefox and Mullvad for OSINT

Derek Bowler

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