A big investigation is a mountain of fragments: a leaked document, a source who'll only talk off the record, a company that keeps appearing under different names, a payment that doesn't add up. The story lives in how those fragments connect, and nobody can hold all of it in their head.Relationship mapping is how reporters find the line through the noise.

Below is how investigative journalists map sources, documents, and money trails visually, and why this work in particular belongs on a private, local board.

Where Investigations Stall

Modern investigations rarely fail for lack of documents. They stall because no one can see how the documents relate. The pattern that becomes the story, the same director across three shell companies or the payment that lines up with a favorable ruling, lives in the connections between records.

Spreadsheets hold the facts. The relationships between them are what a board is for.

What Goes on an Investigation Board

  • People: sources, subjects, officials, and the connectors between them.
  • Organizations: companies, agencies, and the shells behind them.
  • Documents: filings, emails, contracts, and photos, kept as artifacts you can cite.
  • Events: meetings, transfers, votes, and the dates that build a timeline.
  • Notes: what a source told you, what's confirmed, and what still needs a second source.

The strings carry the claims: source for, paid, met with, directs, owns, confirms, contradicts.

How to Build the Board

Step 1: Put Every Source on the Map

Add each source as a node and connect them to what they can speak to. You'll see instantly which claims rest on a single source, the ones you can't publish yet, and which have independent corroboration.

Step 2: Anchor Claims to Documents

Every assertion in the story should trace back to evidence. Connect claims to the specific document, record, or interview that supports them. When a lawyer or editor asks "how do we know this?", the answer is one string away.

Step 3: Follow the Money

Map entities, accounts, and transfers, and label the flows. The "same registered agent behind three companies" moment is a pattern you spot on a board long before you'd catch it in a table.

Step 4: Build the Timeline

Add events as nodes and connect them in sequence. A payment that arrives the week before a decision, a meeting that precedes a policy reversal: timing is often the whole story, and it's obvious once it's laid out.

Step 5: Track Confidence and Sourcing

Mark each connection as confirmed, on the record, or unverified, and note who told you and when. Sourcing attached to every link protects both the story and the reporter.

Why This Work Stays Off the Cloud

An investigation board can contain the identity of confidential sources, unpublished allegations, and material that would be dangerous in the wrong hands. That's not data to hand to a cloud service you don't control.

A local-first, offline tool keeps the entire board on your own machine: no account, no server, no company that can be subpoenaed for your notes. If you've promised a source confidentiality, that's the minimum you owe them.

Investigation Mapping in Redstrings

Redstrings was designed for exactly this kind of work: the detective board, made digital.

  • Person, Team, Artifact, and Event nodes for sources, organizations, documents, and the timeline.
  • Labeled strings that document how everything connects: "paid," "met with," "source for."
  • Notes and confidence levels to track sourcing and what still needs corroboration.
  • PNG export to walk an editor through the story, or to attach the map to your files.
  • 100% local, no account: sensitive source material never leaves your machine.

Related reading: link analysis for investigators. When you're ready, download Redstrings free and start mapping your investigation.