"People move more when they’re lying"

Sophie van der Zee is an assistant professor at the Erasmus School of Economics and is conducting research to develop a foolproof lie detection system, something the police could use in interrogations. In the process, though, she has identified Donald Trump’s telltale signs, and can even tell when he’s lying in a tweet.

“Don't try playing amateur detective,” says academic researcher Sophie van der Zee. If there’s one thing she’s learned in the ten years that she’s been researching the most foolproof method of lie detection, it’s that you can’t tell with the naked eye. Signs like looking away and fidgeting don’t tell you anything. “We often look away when we’re thinking, whereas someone who’s lying will likely look you in the eye in the hope of convincing you they’re telling the truth.” The request that led to this research originally came from the Centre for the Protection of National Infrastructure (cpni.gov.uk), in 2010, asking: how can police interrogations be improved? How do you determine trustworthiness?

Read the whole interview with ea. magazine.

Assistant professor

dr. (Sophie) SC van der Zee

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