Martin A. Andresen is an Assistant Professor at Simon Fraser University School of Criminology. His areas of interest are spatial crime analysis, geography of crime, environmental criminology, applied spatial statistics and geographical information analysis, and (critical) quantitative methods. Paul J. Brantingham is a Professor at Simon Fraser University School of Criminology. His areas of interest are computational criminology, environmental criminology, the ecology of crime, crime analysis, historical criminology, comparative criminal justice, legal aid, and related matters. J. Bryan Kinney is an Assistant Professor at Simon Fraser University School of Criminology. His areas of interest are environmental criminology theory, geography of crime, police studies, crime prevention and crime reduction, and quantitative research methods.