Henk van Ess finds hidden stories in data. He trains news media, law enforcers, fraud experts, NGOs and authorities in finding relevant open source information. For The Poynter Institute, he is an assessor of worldwide fact-checkers. For boards, he screens high-profile candidates for privacy leaks. He is co-author of the Verification Handbook (2020) and Richtig Recherchieren (2017).

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