Professor Johnson has worked within the fields of criminology and forensic psychology for over 15 years, and has particular interests in exploring how methods from other disciplines (e.g. complexity science) can inform understanding of crime and security issues, and the extent to which theories developed to explain everyday crimes can explain more extreme events such as riots, maritime piracy and insurgency. He has conducted work for a variety of sponsors including the AHRC, ESRC, Home Office, UK police forces, the Department for the Environment & Rural Affairs (Defra), Department for Education & Skills (DfES) and British Academy. He is currently a co-investigator on the £2.8M EPSRC funded project ENFOLD concerned with global dynamics, which is a collaboration between academics across UCL, led by Sir Alan Wilson in the UCL Centre for Advanced Spatial Analysis
He has published over 80 papers within the fields of criminology and forensic psychology in journals including Criminology, the Journal of Quantitative Criminology, Journal of Research in Crime and Delinquency, Criminology and Public Policy, the British Journal of Criminology, and Law and Human Behavior. His work has been covered in the press including the Economist
, New Scientist
and the Guardian
. He recently guest edited a special edition of the European Journal of Applied Mathematics, an international journal concerned with Environmental Criminology and Crime Analysis, has edited a book on crime prevention and has co-authored two Problem Oriented Policing guides published by the US Department of Justice. He is an Associate Editor of the Journal Legal and Criminological Psychology, and is also on the editorial boards of the Encyclopedia of Victimology & Crime Prevention (edited by Bonnie Fisher and Steven P. Lab), and the Journals of Research in Crime and Delinquency, and Crime Patterns and Analysis.