The ongoing reference library for investigators

OSINT
Handbook

Stay current with an expanding professional library of practical guides, investigative workflows and reference material. Start free, create a member account, or unlock the complete Handbook with Premium.

Field briefing One clue. Several signals.

Use the handbook to turn fragments into a clear investigative picture.

!
Risk signalNeeds checking
?
Possible matchCorroborate
Verified linkMultiple sources
People
Businesses
Locations
One Handbook · three ways to access it

Use it throughout your development.

The Handbook is designed to be revisited whenever a platform changes, a new source appears or an investigation needs a practical next step.

Free

Start with open guides.

Read selected practical articles and see the quality of the Handbook before creating an account.

Browse free guides
Member

Unlock more resources.

Create a free member account for additional guides, resources and Handbook updates.

Join free
Premium · £5/month

Open the complete Handbook.

Access every premium guide and the expanding library of future premium additions.

Unlock Premium
Looking for structured professional development? The Handbook helps with today’s question. Training builds the complete investigative methodology.
Explore Professional Training
The OSINT Handbook

A growing professional reference library.

Browse the growing Handbook by access level and find the practical guidance you need for your next investigation.

--Total guides
--Free
--Members
--Premium
Find the guide you need

Browse practical OSINT guidance.

Start with a recommended guide, search by topic, or open a module to follow a structured learning path.

Guided investigation

Watch one clue become an investigation.

The handbook breaks this process down into repeatable steps: start with a clue, pivot carefully, corroborate the result, then explain confidence.
JS
Social profile
John Smith
Context foundEmployment, interests, location clues and associated usernames.
Username pivotThe same handle appears across more than one platform.
Public record
Company directorCompany filings create a business link and further addresses.
Property clue
Planning applicationA public planning record connects the subject to a location.
Scroll to watch a simple lead become an intelligence picture.
Starting points

Where does your investigation begin?

Choose the clue you have and the handbook shows the next sensible pivots.

Suggested workflow

Name

Inside the handbook

Guides built around real investigative pivots.

Each guide starts with a clue, then shows how to turn it into useful intelligence through structured research, source selection and careful analysis.

People research

From name to identity

Resolve names, aliases, locations, family links and profile matches.

Social media

Username pivots

Follow handles across platforms, archives, breach data and public profiles.

Public records

Companies, property and courts

Use public datasets to validate identity, map associations and add context.

Analysis

Build the picture

Turn fragments into timelines, link charts, hypotheses and intelligence notes.

Tradecraft

Search better

Practical search methods, collection planning, source grading and documentation.

Responsible OSINT

Stay proportionate

Ethical, legal and operational considerations for open-source investigations.

Visual methods

Turn fragments into a picture.

Choose the visual method that matches the problem: sequence events, map relationships, build subject and business profiles, assess locations or explain the evidence.

Sequence

Timeline

Separate the lead, source, verification step and assessment so the investigation has a clear sequence.

Featured case file

One address. Several public records. A clearer picture.

A practical example of how a single location can lead to residents, companies, planning applications, probate references and useful timelines.

How the guide unfolds

1. Start with the addressStandardise spelling, formatting and historic variants.
2. Identify possible residentsOpen register, companies, probate, planning records and public mentions.
3. Build a timelineSeparate confirmed records from possible matches and unresolved leads.
4. Record confidenceExplain what is known, what is inferred and what still needs checking.
Free membership

Join the Intelligence with Steve community.

Get new handbook chapters, practical OSINT techniques and access to selected member-only guides as they are published.

Check your inbox to confirm your email address.

Something went wrong. Please try again.

What members get

More than a mailing list.

New chaptersUpdates when practical guides go live.
Member articlesSelected deeper guides and walkthroughs.
Training updatesEarly notice of webinars and new courses.