Kelle is senior lecturer in politics and international relations in the Department of Politics, Languages, and International Studies at the University of Bath, United Kingdom. His research interests are in the area of chemical and biological weapons (CBW) prohibition. Kelle currently focuses on: the evolution of the international CBW prohibition regimes, and the interface between scientific and technological developments and CBW policies and governance measures. In the latter field, he is particularly interested in the dual-use implications of synthetic biology. He has published widely on CBW issues and is co-author of a forthcoming monograph (with Malcolm Dando and Kathryn Nixdorff), Preventing a Biochemical Arms Race, with Stanford University Press. Before coming to Bath, Kelle held positions at Queen's University Belfast, the Department of Peace Studies at Bradford University, and the Peace Research Institute in Frankfurt, Germany.