Juan is a member of the Ngati Porou iwi and a Senior Lecturer in criminology at the University of Waikato. Juan has carried out a number of research projects on a diverse range of topics, including youth gangs, gendered violence, Indigenous experiences of prison and policing, and the globalisation of restorative justice.
Juan has published widely and recently co-edited a special issue of the African Journal of Criminology and Justice Studies on ‘Indigenous Perspectives and Counter Colonial Criminology’, and published a book on Indigenous Criminology, the first of its kind, with Professor Chris Cunneen from the University of Technology, Sydney.