Ian Roberts is Professor of Epidemiology at the London School of Hygiene & Tropical Medicine. He trained as a paediatrician in the UK and then in epidemiology at the University of Auckland, New Zealand and McGill University, Canada. He is a clinical academic who works collaboratively with health professionals world-wide to conduct large multi-centre clinical trials aimed at improving patient outcomes in life threatening emergencies. He works with others to build global research partnerships to answer questions together that could not be answered by anyone working alone. He has played lead roles in several large trials including the CRASH trials and the Woman trial.