The current litigation in the World Trade Organisation (WTO) over European restrictions on the importation, marketing and sale of genetically modified organisms gives rise to questions about the procedures through which international courts and tribunals may receive expert evidence from social science experts. The WTO Panel considering the EC – Biotech case received an amicus curiae brief from five social science experts who are highly qualified in precisely those fields of sociological research within which the most problematic aspects of the Biotech dispute are situated. The authors of the five-person brief themselves suggest that panels dealing with the subject of risk should contemplate formally appointing experts to assist them from disciplines additional to the natural sciences, and this suggestion merits serious broader consideration. International courts and tribunals’ handling of certain cases, such as those concerning risks to human health and the environment from new and modern technology, may stand to be improved through better access to state-of-the-art expertise on all aspects of risk and risk assessment.