Jasper previously served on the Board of the INGO Accountability Charter and helped develop the Global Reporting Initiative’s NGO Sector Supplement. He was also a Board Member of NJCM, the Dutch branch of the International Commission of Jurists. He acted as an independent advisor to the international commission investigating the ‘Probo Koala’ case, which concerned the dumping of toxic waste in Abidjan, Ivory Coast, on 18 August 2006. He regularly speaks on a wide range of topics, such as climate change litigation, free speech, peaceful protest and Greenpeace’s corporate campaigns.
After studying law at University of Amsterdam and University of Kent at Canterbury, Jasper clerked at the Amsterdam Court of Appeals. Before joining Greenpeace in 2004 he practiced for ten years as a media and civil litigator in Amsterdam.