Nellie de With (1977) works as a PhD candidate for the department of Criminal Law and Criminology at the Faculty of Law of Maastricht University. In addition she is a tutor in Substantive Criminal Law and Criminal Procedure. She also mentors first year ELS students and she is involved in the LGBT+ network of Maastricht University, called UM Pride.

Her PhD research focuses on the disparity between imprisonment sentences as they are imposed by the court and imprisonment sentences as they are executed. Her research is comparative in nature, focusing on the execution of imprisonment sentences in the Netherlands, Belgium and the USA.