Gerry Stimson is a British public health social scientist, emeritus professor at Imperial College London from 2004, and an honorary professor at the London School of Hygiene and Tropical Medicine from 2017.[1][2] Stimson has over 220 scientific publications mainly on social and health aspects of illicit drug use, including HIV infection. He has sat on numerous editorial boards including AIDS, Addiction, and European Addiction Research, and with Tim Rhodes he was the co-editor-in-chief of the International Journal of Drug Policy from 2000 to 2016.[3] He is one of the global leaders for research on and later advocacy for harm reduction.