Publications

 GRIEVANCE Publications

• Schumann, S., Clemmow, C., Rottweiler, B., & Gill, P. (2024). Distinct patterns of incidental exposure to and active selection of radicalizing information indicate varying levels of support for violent extremism. PLoS one, 19(2), e0293810.

• Rottweiler, B., Clemmow, C., & Gill, P. (2023). A Common Psychology of Male Violence? Assessing the Effects of Misogyny on Intentions to Engage in Violent Extremism, Interpersonal Violence and Support for Violence against Women. Terrorism and Political Violence, 1-26.

• Clemmow, C., van der Vegt, I., Rottweiler, B., Schumann, S., & Gill, P. (2024). Crowdsourcing samples for research on violent extremism: a research note. Terrorism and political violence, 36(3), 267-282.

• Clemmow, C., Rottweiler, B., Wolfowicz, M., Bouhana, N., Marchment, Z., & Gill, P. (2024). The whole is greater than the sum of its parts: Risk and protective profiles for vulnerability to radicalization. Justice Quarterly, 41(1), 140-166.

• Braddock, K., Schumann, S., Corner, E., & Gill, P. (2022). The Moderating Effects of “Dark” Personality Traits and Message Vividness on the Persuasiveness of Terrorist Narrative Propaganda. Frontiers in Psychology, 13, 779836.

• Clemmow, C., Rottweiler, B., & Gill, P. (2022). EXPO-12: Development and validation of the Exposure to Violent Extremism Scale. Psychology of violence, 12(5), 333.

• van der Vegt, I., Mozes, M., Kleinberg, B., & Gill, P. (2021). The grievance dictionary: Understanding threatening language use. Behavior research methods, 1-15.

• Clemmow, C., Bouhana, N., Marchment, Z., & Gill, P. (2023). Vulnerability to radicalisation in a general population: a psychometric network approach. Psychology, Crime & Law, 29(4), 408-436.

• Rottweiler, B., & Gill, P. (2022). Individual differences in personality moderate the effects of perceived group deprivation on violent extremism: Evidence from a United Kingdom nationally Representative Survey. Frontiers in psychology, 13, 790770.

• van der Vegt, I., Kleinberg, B., & Gill, P. (2022). Predicting author profiles from online abuse directed at public figures. Journal of threat assessment and management, 9(1), 17.

• van der Vegt, I., Gregory, P., van der Meer, B. B., Yang, J., Kleinberg, B., & Gill, P. (2022). Assessment procedures in anonymously written threats of harm and violence. Journal of threat assessment and management, 9(1), 1.

• Schumann, S., Salman, N. L., Clemmow, C., & Gill, P. (2022). Does cognitive inflexibility predict violent extremist behaviour intentions? A registered direct replication report of Zmigrod et al., 2019. Legal and Criminological Psychology, 27(2), 329-353.

• Marchment, Z., Frith M.J., Morrison, J. and Gill. P. (2021). A Multi-Level Analysis of Risky Streets and Neighbourhoods for Dissident Republican Violence in Belfast. ISPRS International Journal of Geo-Information, 10(11), 765.

• Clemmow, C., Gill, P., Corner, E., Farnham, F., Taylor, R., Wilson, S., ... & James, D. (2021). A data-driven classification of outcome behaviors in those who cause concern to British public figures. Psychology, Public Policy, and Law.

• van der Vegt, I., Mozes, M., Kleinberg, B., & Gill, P. (2021). The Grievance Dictionary: understanding threatening language use. Behavior research methods, 1-15.

• Gill, P., Clemmow, C., Hetzel, F., Rottweiler, B., Salman, N., Van Der Vegt, I., Marchment, Z., Schumann, S., Zolghadriha, S., Schulten, N., Taylor, H., Corner, E. (2021) Systematic Review of Mental Health Problems and Violent Extremism, The Journal of Forensic Psychiatry & Psychology, 32(1), 51-78.

• Rottweiler, B., Gill, P. & Bouhana, N. (2020). Individual and Environmental Explanations for Violent Extremist Intentions: A German Nationally Representative Survey Study. Justice Quarterly, 1-22.

• Salman, N. L. & Gill, P. (2020). A survey of risk and threat assessors: Processes, skills, and characteristics in terrorism risk assessment. Journal of Threat Assessment and Management, 7 (1-2), 122.

• Rottweiler, B. & Gill, P. (2020). Conspiracy Beliefs and Violent Extremist Intentions: The Contingent Effects of Self-efficacy, Self-control and Law-related Morality. Terrorism and Political Violence.

• Gill, P., Marchment, Z., Zolghadriha, S., Salman, N., Rottweiler, B., Clemmow, C., & Van Der Vegt, I. (2020). Advances in Violent Extremist Risk Analysis. In Radicalization and Counter-Radicalization. Emerald Publishing Limited.

• Schumann, S., Rottweiler, B., & Gill, P. (2020). Assessing Public Support for Terrorism Over Time.

• Marchment, Z. & Gill, P. (2020). Psychological and Criminological Understanding of Terrorism: Theories and models. The Handbook of Collective Violence: Current Developments and Understanding.

• Gill, P., Marchment, Z., Rottweiler, B. & Zolghadriha. Jihad and the United Kingdom, In Smith, T., & Solomon, H. (Eds.). (2020). Exporting Global Jihad: Volume One: Critical Perspectives from Africa and Europe.

• Clemmow, C., Gill, P., Bouhana, N., Silver, J., & Horgan, J. (2020). Disaggregating Lone-actor Grievance-fuelled Violence: Comparing Lone-actor Terrorists and Mass Murderers. Terrorism and Political Violence, 1-26.

• Clemmow, C., Schumann, S., Salman, N. L., & Gill, P. (2020). The base rate study: developing base rates for risk factors and indicators for engagement in violent extremism. Journal of Forensic Sciences.

• Marchment, Z. and Gill, P. (2020). Spatial decision making of terrorist target selection: Introducing the TRACK Framework. Studies in Conflict and Terrorism.

• Kleinberg, B., van der Vegt, I., & Gill, P. (2020). The temporal evolution of a far-right forum. Journal of Computational Social Science, 1-23.

• van Der Vegt, I., Marchment, Z., Clemmow, C., & Gill, P. (2019). Learning from the parallel field of terrorism studies. Journal of Threat Assessment and Management, 6(3-4), 202–209. 

• van der Vegt, I., Mozes, M., Gill, P., & Kleinberg, B. (2019). Online influence, offline violence: Linguistic responses to the'Unite the Right'rally. arXiv preprint arXiv:1908.11599.

• Gill, P., Corner, E., McKee, A., Hitchen, P., & Betley, P. (2019). What do closed source data tell us about lone actor terrorist behaviour? A research note. Terrorism and Political Violence.

• Schumann, S., van der Vegt, I., Gill, P., & Schuurman, B. (2019). Towards Open and Reproducible Terrorism Studies: Current Trends and Next Steps. Perspectives on Terrorism, 13(5), 61-73.

• Clemmow, C., Bouhana, N., & Gill. P. (2019). Analysing person-exposure patterns in lone-actor terrorism: Implications for threat assessment and intelligence gathering. Criminology and Public Policy.

• Marchment, Z., Gill, P., & Morrison, J. (2019). Risk Factors for Violent Dissident Republican Incidents in Belfast: A Comparison of Bombings and Bomb Hoaxes. Journal of Quantitative Criminology, 1-20.

• Marchment, Z., & Gill, P. (2019). Modelling the spatial decision making of terrorists: The discrete choice approach. Applied Geography, 104, 21-31.

• Marchment, Z., and Gill, P. (2019) “Terrorists Are Just Another Type of Criminal”, in Routledge Handbook of Crime Science. R. Wortley, G. Laycock and N. Tilley (eds.) London: Routledge

• Gill, P., Salman, N.L., and Clemmow, C. (2018). Prescient, Inconsistent, and Ignorant: Commentary on The Dispensation of Dynamite.  Journal of Threat Assessment and Management

• Robinson, A., Marchment, Z., & Gill, P. (2018). Domestic Extremist Criminal Damage Events: Behaving Like Criminals or Terrorists? Security Journal 

• Marchment, Z., Bouhana, N., and Gill, P. (2018). Lone actor terrorists: A residence-to-crime approach. Terrorism and Political Violence 

Related Publications

2020

• Salman, N. & Gill, P. (2020). Terrorism during the COVID-19 pandemic. UCL Jill Dando Institute of Security and Crime Science.

2018

• Gill, P., Marchment, Z., Corner, E., and Bouhana, N. (Forthcoming) “Terrorist Decision-Making in the Context of Risk, Attack Planning and Attack Commission”. Studies in Conflict and Terrorism

• Silver, J., Horgan, J., & Gill, P. (Forthcoming) “Shared Struggles? Cumulative Strain Theory and Public Mass Murderers from 1990 to 2014”. Homicide Studies

• Corner, E. and Gill, P. (Forthcoming) “The Nascent Empirical Literature on Psychopathology and Terrorism”. World Psychiatry.

• Schuurman, B., Lindekilde, L., Malthaner, S., O’Conner, F., Gill, P., and Bouhana, N (Forthcoming). “End of the Lone Wolf: The Typology That Should Not Have Been”. Studies in Conflict and Terrorism

• Schuurman, B., Bakker, E., Gill, P., and Bouhana, N. (Forthcoming) “Lone Actor Terrorist Attack Planning and Preparation: A Data-Driven Analysis”. Journal of Forensic Sciences

• Gill, P., Horgan, J., and Corner, E. (Forthcoming) “The Rational Foraging Terrorist: Analysing the Distances Travelled to Commit Terrorist Violence”. Terrorism and Political Violence

• Silver, J., Gill, P. and Horgan, J. “Foreshadowing Targeted Violence: Assessing Leakage of Intent by Mass Murderers” (2018). Aggression and Violent Behaviour 38(1):94-100.

2017

• Gill, P., Silver, J., Horgan, J., and Corner, E. (2017) “Shooting Alone: The Pre-Attack Experiences and Behaviors of U.S. Solo Mass Murderers with Implications for Threat Assessments”. Journal of Forensic Sciences 62(3):710-714.

• Gill, P. (2017) “Tactical Innovation and the Provisional Irish Republican Army”. Studies in Conflict and Terrorism 40(7): 573-585.

• Gill, P. and Corner, E. (2017) “There and Back Again: The Study of Mental Disorder and Terrorist Involvement”. American Psychologist 72(3): 231-241.

• Gill, P., Corner, E., Conway, M., Thornton, A., Bloom, M., and Horgan, J. (2017) “Terrorist Use of the Internet by the Numbers: Quantifying Behaviors, Patterns & Processes”. Criminology and Public Policy 16(1):99-117.

• Corner, E. and Gill, P. (2017) “Is There a Nexus Between Terrorist Involvement and Mental Health in the Age of the Islamic State?” The CTC Sentinel 10(1):1-10.

• Gill, P., Horgan, J., Corner, E. and Silver, J. (2016) “Risk Factors and Lone Actor Violent Events: The Problems of Low Base Rates and Long Observational Periods”. Journal of Threat Assessment and Management 3(3-4):165-173

2016

• Gill, P. and Corner, E. (2016) “Lone-Actor Terrorist Target Choice”. Behavioral Sciences and the Law 34(5): 693-705

• Manique, P., Cao, Z., Gabriel, A., Horgan, J., Gill, P., … & Johnson, N. (2016) “Women’s Connectivity in Extreme Networks”. Science Advances 2: e1501742

• Meloy, J.R. and Gill, P. (2016) “The Lone Actor Terrorist and the TRAP-18”. Journal of Threat Assessment and Management 3(1): 37-52

• Gill, P., Horgan, J., and Piazza, J. (2016) “Counterterrorism Killings and Provisional IRA Bombings, 1970-1998”. Terrorism and Political Violence 28(3): 473-496

• Tench, S., Fry, H. and Gill, P. (2016) “Spatio-Temporal Patterns of IED Usage by the Provisional Irish Republican Army”. European Journal of Applied Mathematics 27(3): 377-402

• Morrison, J. and Gill, P. (2016) “100 Years of Irish Republican Violence”. Terrorism and Political Violence 28(3): 409-416

• Corner, E., Gill, P. and Mason, O. (2016) “Mental Health Disorders and the Terrorist: A Research Note Probing Selection Effects and Disorder Prevalence”. Studies in Conflict and Terrorism 39(6): 560-568

• Gill, P. (2015) “Towards a Scientific Approach to Identifying and Understanding Indicators of Radicalization and Terrorist Intent: Eight Key Problems” Journal of Threat Assessment and Management 2(3-4): 187-191.