This book promotes new theoretical frameworks and research questions that seek to substantially advance knowledge of policing across internal and external organisational boundaries, specifically at the structural level of analysis. This book was originally published as a special issue of Policing and Society.

Benoît Dupont is Professor of Criminology at the Université de Montréal, Canada, where he also holds the Canada Research Chair in Cybersecurity and the Research Chair in the Prevention of Cybercrime.

Chad Whelan is Associate Professor of Criminology at Deakin University, Australia.

Peter K. Manning is Elmer V.H. and Eileen M. Brooks Professor of Criminology and Criminal Justice at Northeastern University, USA.

Introduction - Policing across organisational boundaries: Developments in theory and practice 1. Implementation fidelity in a loosely coupled system: the challenges of maintaining consistent 'problem theory' and 'programme theory' in a multi-force training pilot 2. Funnelling through foundations and crime stoppers: how public police create and span inter-organisational boundaries 3. The police intelligence division-of-labour 4. Boundary crossing: networked policing and emergent 'communities of practice' in safeguarding children 5. 'It's about using the full sanction catalogue': on boundary negotiations in a multi-agency organised crime investigation 6. Taking stock of networks across the security field: a review, typology and research agenda