OSINT Rules of Engagement - UK & US: A practical guide for Open-source intelligence practitioners operating in the UK and the US

By Kyle Hardcastle

In open-source intelligence, the difference between what is publicly visible and what is legally collectible can be the difference between a defensible case and a career-ending mistake. OSINT Rules of Engagement - UK & US arms practitioners with a clear, practical framework for working safely across two of the world's most complex privacy and data-protection environments.

Written by practitioner Kyle Hardcastle, this guide goes beyond tools and tactics to focus on the rules that matter most: intelligence requirements, jurisdictional awareness, ethical boundaries, data retention, and secure dissemination. Through real-world scenarios and straightforward guidance, it shows how to avoid risky shortcuts such as fake profiles, automated scraping, and unauthorized access, while building intelligence that stands up to scrutiny.

Designed for OSINT analysts, investigators, threat intelligence teams, and security professionals, this book is both a field manual and a professional standard. If you need your work to be fast, useful, and legally defensible, this is the guide that helps you do it right.

Disclaimer: This book reflects the author's experience and practical perspective as an OSINT practitioner. It is provided for general informational purposes only and should not be taken as legal advice. Readers should seek appropriate professional advice where needed.

• Format: Paperback
• Language: English
• ISBN: B0HD8243WM
• ISBN13: 9798190678413
• Release Date: August 2026
• Publisher: Independently Published
• Length: 30 Pages
• Weight: 0.14 lbs.
• Dimensions: 0.1" x 6.7" x 9.6"