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    An exploratory analysis of leakage warning behavior in lone-actor terrorists

    Rose, Miss Menna and Morrison, John (2023) An exploratory analysis of leakage warning behavior in lone-actor terrorists. Behavioral Sciences of Terrorism and Political Aggression, 15 (2). pp. 179-214. ISSN 1943-4472

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    Leakage is one of the eight warning behaviors referred to in the violence risk and threat assessment literature. Previous research has highlighted the relevance and prevalence of leakage in lone-actor terrorists; however, a more detailed understanding of this phenomenon is lacking. This study sets out to expand our knowledge of this behavior by conducting an exploratory analysis using court records relating to IS-inspired lone-actor terrorism cases in the United States. The general patterns in leakage warning behavior were analyzed, and different types of leakage were examined with regard to from whom they were leaked, how they were leaked, their presence online, and whether or not they occurred before certain types of attacks more than others. It was found that leakage in the form of support tended to be leaked most frequently to members of the public, via written text and online, whilst the leakage of intent and specifics appeared to be more regularly leaked to co-conspirators and through verbal communication that avoided the online world. Significant relationships were also found between leakage, FBI interaction and attack initiation, but no significant relationship was found between leakage and mental health. The implications of these findings are discussed.

    Item Type: Article
    Keywords: Leakage; lone actor; warning behavior; mental health;
    Academic Unit: Faculty of Social Sciences > Law
    Item ID: 18528
    Identification Number:
    Depositing User: Dr John Morrison
    Date Deposited: 16 May 2024 10:20
    Journal or Publication Title: Behavioral Sciences of Terrorism and Political Aggression
    Publisher: Taylor & Francis Online
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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