How open-source intelligence fans track down clues in a photo

Each month, our journalists go meet an Observer to take a closer look at events they have witnessed.


Every day, the Twitter account @Quiztime posts a photo and asks its followers to identify where it was taken. Fans use clues like a license plate or a car GPS to track down the photo. The game is an example of open-source intelligence, or OSINT, which uses publicly available sources to gather information.

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The Observers program brings you the best amateur images from around the world, all verified by France 24 journalists. To see more reports from our Observers – and to become an Observer yourself! – head to our website:

The Observers website