I was awarded my PhD in 1991 at the Vrije Universiteit in Amsterdam (the Netherlands) and came to the UK in 1994, when I joined the Psychology Department as a Senior Lecturer. In 1996 I was promoted to Reader and in 2000 to my current position: Professor of Applied Social Psychology.

Research Interests

My main research interest is deception, resulting in almost 600 publications and more than 25,000 citations. I received grants from British Research Councils, Trusts and Foundations, Insurers, Federal Bureau of Investigation and American, British, Dutch, and Singapore Governments, totalling > $11,000,000.

I work closely with practitioners (police, security services and insurers) in terms of conducting research and disseminating its findings. My book Detecting Lies and Deceit: Pitfalls and Opportunities (published by Wiley) is a comprehensive overview of research into (non)verbal and physiological deception and lie detection.

In 2016 I received the International Investigative Interviewing Research Group (iiiRG) Lifetime Achievement Award in recognition of my significant contribution to investigative interviewing. 

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