Rémi Boivin is Associate Professor at the School of Criminology of the Université de Montréal, Cananda. Prof. Boivin’ focus on crime analysis led him to the study of co-offending and mobility, for which he used social network perspectives and techniques. His doctoral dissertation was co-supervised by Prof. Carlo Morselli. David Décary-Hétu is Associate Professor at the School of Criminology of the Université de Montréal, Canada. Through his innovative approach, Prof. Décary-Hétu studies how offenders adopt and use technologies, and how that shapes the regulation of offenses, as well as how researchers can study offenders and offenses.