Dr. John Morrison

Senior Lecturer (equiv. Associate Professor) in Criminology

About Dr. Morrison...

Dr. Morrison's research interests include organisational splits in terrorist groups, the role of trust in terrorist involvement, violent dissident Irish republicanism, the psychology of terrorism, expert-novice differences in terrorist offenders, and the social ecology of radicalisation.

Dr. John F. Morrison is a Senior Lecturer in Criminology. He is the co-programme director of the MSc in Terrorism and Counter-Terrorism Studies, which launched in the academic year 2019/20. He is also the Undergraduate Education Lead for the Department of Law and Criminology.

John holds a BA in Psychology from University College Dublin, an MA in Forensic Psychology from University College Cork and a PhD in International Relations from the University of St. Andrews. 

Prior to joining Royal Holloway in September 2018 John was a Reader in Criminology and Criminal Justice at the University of East London (UEL). In 2016 John became the founding director of the Terrorism and Extremism Research Centre (TERC) at UEL. John was also a a postdoctoral researcher at The International Center for the Study of Terrorism, at The Pennsylvania State University between 2010 and 2011. In that year he managed the Violent Dissident Irish Republican research project.

John is an associate editor of two leading academic journals in terrorism studies, Perspectives on Terrorism and Behavioural Sciences of Terrorism and Political Aggression. He is also the host and developer of the Talking Terror podcast. On the podcast he interviews leading experts in terrorism and counter-terrorism studies.

Institutional Affiliations


Royal Holloway, University of London

Senior Lecturer in Criminology

- Co-programme director of the MSc in Terrorism and Counter-Terrorism Studies
- Co-director of the CVTRC


University of East London

Reader in Criminology and Criminal Justice


Senior Lecturer in Criminology and Criminal Justice



Penn State University 

Post Doctoral Research Fellow at the International Center for the Study of Terrorism


Select project for brief description

One of the objectives of the study is to assess if research published since 2017 supports or contradicts current assumptions behind existing disengagement and desistence intervention programmes. In order to do this, this study will identify and assess the pre-2017 research which has had the most influence and impact with regard to disengagement and desistence interventions..

The deliverables from the project will include the following: a full systematic review report, infographics, short form briefing documents, a literature database, and a 5 episode podcast series on key findings from the research

The core research team includes Prof. Andrew Silke (Cranfield University) and Dr. John Morrison (Royal Holloway, University of London) and Ms. Heidi Maiberg, a PhD candidate with a research focus on disengagement and desistance.


A Systematic Review Of Post-2017 Research On Disengagement And Deradicalisation
Morrison, J. F., Silke, A., Maiberg, H., Slay, C. & Stewart, R., 9 Aug 2021, 
The Role Of (Dis)Trust In Disengagement And Deradicalisation
Morrison, J. F., Silke, A., Maiberg, H., Slay, C. & Stewart, R., 23 Jul 2021
The Development of the Framework for Research Ethics in Terrorism Studies (FRETS)
Morrison, J. F., Silke, A. & Bont, E., 24 Mar 2021, (E-pub ahead of print) In: Terrorism and Political Violence. 33, 2, p. 271-289
An exploratory analysis of leakage warning behavior in lone-actor terrorists
Rose, M. & Morrison, J. F., 17 Mar 2021, (E-pub ahead of print) In: Behavioral Sciences of Terrorism and Political Aggression.
A Research Agenda for Terrorism Studies
Frumkin, L. (ed.), Morrison, J. F. (ed.) & Silke, A. (ed.), 2021, (In preparation) Edward Elgar.
The Social Psychology of Radicalisation
Morrison, J. F., 2021, (Submitted) Radicalization in Theory and Practice: Pathways to National Security in Western Europe. Michigan University Press
Reality Check: The Real IRA’s Tactical Adaptation and Restraint in the Aftermath of the Omagh Bombing
Morrison, J. F., Dec 2020, In: Perspectives on Terrorism. 14, 6, p. 152-164
Analyzing Interviews with Terrorists
Morrison, J. F., 17 Nov 2020, RESOLVE Network.
Re-Offending by released Terrorist Prisoners: Separating Hype from Reality
Silke, A. & Morrison, J. F., 2 Sep 2020, In: International Center for Counter-Terrorism: Policy Briefs.
Talking Stagnation: Thematic Analysis of Terrorism Experts’ Perception of the Health of Terrorism Research
Morrison, J. F., 25 Aug 2020, (E-pub ahead of print) In: Terrorism and Political Violence. p. 1-21
Risk Factors for Violent Dissident Republican Incidents in Belfast: A Comparison of Bombings and Bomb Hoaxes
Marchment, Z., Gill, P. & Morrison, J. F., 17 Apr 2019, (E-pub ahead of print) In: Journal of Quantitative Criminology. p. 1-20
Crime in Ireland north and south: Feuding gangs and profiteering paramilitaries
Hourigan, N., Morrison, J. F., Windle, J. & Silke, A., Jun 2018, In: Trends in Organized Crime. 21, 2, p. 126-146
Micro-Moral Worlds of Contentious Politics: A Reconceptualization of Radical Groups And Their Intersections With One Another And The Mainstream
Busher, J. & Morrison, J., Jun 2018, In: Mobilization. 23, 2, p. 219-236
Cultivating Trust and Perceptions of Source Credibility in Online Counternarratives Intended to Reduce Support for Terrorism
Braddock, K. & Morrison, J. F., 14 Mar 2018, (E-pub ahead of print) In: Studies in Conflict & Terrorism. 43, 6, p. 468-492
1975: The Truce that Changed the Troubles
Morrison, J. F., 26 Feb 2018, Historical Perspectives on Organized Crime and Terrorism. Windle, J., Morrison, J. F., Winter, A. & Silke, A. (eds.). 1st ed. Routledge, (SOLON Explorations in Crime and Criminal Justice Histories).
Historical Perspectives on Organisational Crime and Terrorism
Windle, J. (ed.), Morrison, J. F. (ed.), Winter, A. (ed.) & Silke, A. (ed.), 2018, Routledge.
Introduction: Hawking the Historical Methods in Organised Crime and Terrorism Studies
Morrison, J. F., 2018, Historical Perspectives on Organized Crime and Terrorism. Routledge
The Provisional IRA
Morrison, J. F., 2018, Routledge Handbook of Terrorism and Counter-Terrorism. Routledge
The Trustworthy Terrorist: The Role of Trust in the Psychology of Terrorism
Morrison, J. F., 7 Nov 2017, Victims and Perpetrators of Terrorism : Exploring Identities, Roles and Narratives. Lynch, O. & Argomaniz, J. (eds.). 1st ed. Routledge, (Contemporary Terrorism Studies).
Splitting to survive: understanding terrorist group fragmentation
Morrison, J., 18 Sep 2017, In: Journal of Criminological Research, Policy and Practice. 3, 3, p. 222-232
Transmitting Legitimacy and Victimhood: Violent Dissident Irish Republicanism
Morrison, J. F., 20 Feb 2017, In: CREST Security Review.
Copying to be Different: Violent Dissident Irish Republican Learning
Morrison, J., 2017, In: Studies in Conflict and Terrorism. 40, 7, p. 586-602
100 Years of Irish Republican Violence
Morrison, J. F. & Gill, P., 19 Apr 2016, (E-pub ahead of print) In: Terrorism and Political Violence. 28, 3, p. 409-416
An Interview with Danny Morrison
Morrison, J. F., 19 Apr 2016, (E-pub ahead of print) In: Terrorism and Political Violence. 28, 3, p. 620-635
Fighting Talk: The Statements of “The IRA/New IRA”
Morrison, J., 19 Apr 2016, (E-pub ahead of print) In: Terrorism and Political Violence. 28, 3, p. 598-619
Reloading the Armalite? Victims and Targets of Violent Dissident Irish Republicanism, 2007-2015
Morrison, J. F. & Horgan, J., 19 Apr 2016, (E-pub ahead of print) In: Terrorism and Political Violence. 28, 3, p. 576-597
100 Years of Irish Republican Violence: 1916-2016
Morrison, J. F. (ed.) & Gill, P. (ed.), 2016, Routledge.
Trust in me: Allegiance choices in a post-split terrorist movement
Morrison, J., 2016, In: Aggression and Violent Behavior. 28, p. 47-56
Individual Disengagement from Terrorist groups
Gill, P., Bouhana, N. & Morrison, J. F., 2015, Terrorism and Political Violence. SAGE
Peace Comes Dropping Slow: The Case of Northern Ireland
Morrison, J. F., 2015, Researching Terrorism, Peace and Conflict Studies. Routledge
A Time to Think, A Time to Talk: Irish Republican Prisoners in the Northern Ireland Peace Process
Morrison, J. F., 5 Dec 2013, Prisons, Terrorism and Extremism: Critical Issues in Management, Radicalisation and Reform. Silke, A. (ed.). 1st ed. Routledge, (Political Violence).
Interior Rebellion: A History of Irish Republican Splitting
Morrison, J. F., 2013, Divided We Stand: The Strategy and Psychology of Ireland’s Dissident Terrorists. Oxford University Press
The Origins and Rise of Dissident Irish Republicanism: The Role and Impact of Organisational Splits
Morrison, J. F., 2013, Bloomsbury Academic.
The Psychology of Terrorism: Current Understanding and Vital Next Steps
Morrison, J. F., 2013, The McGraw-Hill Homeland Security Handbook. McGraw-Hill
Here to Stay? The Rising Threat of Violent Dissident Irish Republicanism
Horgan, J. & Morrison, J. F., 2011, In: Terrorism and Political Violence.
Why Do People Become Dissident Irish Republicans
Morrison, J. F., 2011, Dissident Irish Republicanism. Continuum
The Affirmation of Behan? An Understanding of the Politicisation Process of the Provisional Irish Republican Movement Through an Organisational Analysis of Splits from 1969 to 1997
Morrison, J. F., 2010