It is from this article. Here is the passage:

On its work on the Skripal poisoning, Bellingcat says investigators searched images on several online search engines, contacted former Russian military officers, browsed photos of a military academy yearbook, searched specific terms online, and scoured leaked Russian databases.

Does on mean according to there?


On is used here to mean regarding or concerning.

The preposition is commonly used in the same sense in phrases such as:

On this subject

On this theme

On the issue

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