A photograph appears on social media with the caption:
“This bridge collapsed this morning.”
The photograph is publicly accessible. You can download it, search it,
inspect the account that posted it, compare the bridge with maps, and
look for earlier copies.
Having access to the photograph does not establish that the caption is true.
Working definition:
Open-source investigation is the systematic use of information that can
lawfully be accessed from open or publicly accessible sources to answer
defined questions, test claims, and document how conclusions were reached.
Three things to keep separate
Open-source information
The material itself: a webpage, photograph, public record, map, video, report, post, or dataset.
Open-source research
The process of finding and organizing relevant material from those sources.
Verification
The process of testing whether a specific claim is supported by the available evidence.
For journalists, OSINT can help to...
find original material, test dates and locations, trace where a claim
began, discover documents, identify inconsistencies, find reporting leads,
and corroborate information obtained elsewhere.
It does not automatically establish motive, responsibility, causation,
or the full meaning of an event. Those conclusions may require interviews,
field reporting, specialist knowledge, documents, or additional evidence.
Practice 1 · What has actually been established?
You find an official ministry webpage containing the sentence:
“All three clinics remained operational throughout June.”
Which conclusion is directly supported by finding this webpage?
Practice 2 · What can OSINT reasonably test?
A video is said to show a protest outside a particular railway station on 4 August.
Which questions are suitable for basic open-source verification?
Practice 3 · The journalist still has work to do
You successfully geolocate a video to the claimed town.
Which statement is safest?
Core habit: Ask, “What exactly has this piece of evidence established?”
Keep the answer narrower than the story you may eventually want to tell.
Quick reflection
Think of one claim you recently encountered online. Write down one part
that could be tested using open sources and one part that would probably
require additional reporting.
Method note: This lesson follows standard journalistic verification practice:
identify what material actually establishes, test provenance and context,
and corroborate rather than treating publicly available material as self-validating.