I am a professor of Artificial Intelligence and Law in the computer science department at Utrecht University. I have master degrees in law (1985) and philosophy (1988) from the University of Groningen. In 1993 I obtained my PhD degree (cum laude) at the Free University Amsterdam with a thesis titled Logical Tools for Modelling Legal Argument.
My main research interests concern artificial intelligence & law and computational models of argumentation. I am a past president of the International Association for AI & Law (IAAIL), of the JURIX Foundation for Legal Knowledge-Based Systems and of the steering committee of the COMMA conferences on Computational Models of Argument. I am on the editorial board of several journals, including Artificial Intelligence and Law. From 2017-2022 I was an associate editor of Artificial Intelligence.