Xavier is a Lecturer in Criminology and Social Policy at the Department of Sociological Studies, University of Sheffield. Previous to this, he completed his undergraduate law degree at Durham University in 2006. During these studies, Xavier's interests moved towards the sociology of deviance and the criminal justice system. As a result, following his undergraduate studies Xavier undertook an MA in Criminology at the University of Leeds. He subsequently completed a PhD in Criminology at Teesside University.
Xavier's research interests are around the policing of organised crime and how law enforcement formulates strategies to combat different forms of organised criminality. His previous research has focused on tobacco smuggling and as part of this research, Xavier has carried out an ethnographic case study of an active tobacco smuggling enterprise. He subsequently worked as a research associate at the Universities of Sheffield and Leeds on international and domestic research projects concerning surveillance and policing. He has also recently been involved in a project concerning the use of restorative justice in the context of organised crime.
He is currently actively conducting research in the areas of organised crime and policing and welcomes enquiries on these themes.