His research interests concern the relationship between New Public Management and performance auditing, and the impact of performance auditing. Alongside his position as part-time researcher at the Public Governance Institute, he works as a performance audit manager at the Belgian Court of Audit. Most recently he contributed to several books on performance auditing. He contributed to the handbook on Performance Auditing: Contibuting to accountability in democratic Government edited by Londsale et al (Edward Elgar, 2011).