Jerry H. Ratcliffe is a professor of criminal justice at Temple University, Philadelphia. He is a former police officer with the Metropolitan Police (London, UK) but became an academic after 11 years service as a result of a winter mountaineering accident that curtailed his police career. Dr Ratcliffe has held positions as a lecturer in policing (intelligence) with Charles Sturt University at the New South Wales Police College in Australia, and as a senior research analyst with the Australian Institute of Criminology. He holds a BS in geography from the University of Nottingham, a PhD that focused on spatial and temporal crime analysis techniques (also Nottingham), and is a Fellow of the Royal Geographical Society.
