Nicholas Marsh is a Senior Researcher at the Peace Research Institute Oslo (PRIO). He currently works on disarmament, arms control and military aid, and has previously ran the NISAT database project that tracked and visualized the international trade in small arms and light weapons. He has been the Chair of a European research network on small arms, and is a Consultant to the UN Office on Drugs and Crime and to the Small Arms Survey. At PRIO he has written tens of articles, chapters and reports on the acquisition and use of weapons by non-state groups, the global licit and illicit trade in small arms and light weapons, lethal autonomous weapons, and national and international laws and regulations governing arms transfers.