Chair of the Green Criminology Division of Nederlandse Vereniging voor Criminologie (NVC)

Chair of the Illegal Environmental Markets Building Block (IEM)

Co-chair of the Green Criminology Specialist Group at IUCN (GCSC)

Co-chair of the Critical Pathways to Sustainability Group at UU (CPS)

Board member of the Centre for Information and Research on Organised Crime (CIROC)

Board member of Green Criminology European working group (ESC)

Board member of Stichting No Wildlife Crime

Member of the Global Initiative against Organized Crime

Member of the Ecocide Working Group at European Law Institute (ELI)

Member of the Royal United Services Institute for Defence and Security Studies

Member of the Ethics Committee of the Faculty of Law, Economics and Governance (FETC)

Member of the Faculty Council of Law, Economics and Governance (FR)

Member of the Research and Data Management Committee of the Faculty of Law, Economics and Governance (RDM)

Editorial Board Member Trends in Organized Crime

Editorial Board Member Forensic Science International: Animals and Environments

Advisory Board Member USAID Targeting Natural Resource Corruption

Advisory Board Member ESRC Project Beastly Business: Examining the Illegal Trade in Bears, Eels and Songbirds

Advisory Board Member GITOC Project Environmental crimes & biological threats in the Mekong

Technical Working Group 'Crimes that Affect the Environment', United Nations Office on Drugs and Crime