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TRAP-18 (Terrorist Radicalisation Assessment Protocol)

Definition

18-indicator structured professional judgement instrument by Reid Meloy, Roshdi, Guldimann and Hoffmann (2014). Distinguishes 8 proximal warning behaviours (leakage, pathway, fixation, novel aggression, energy burst, identification, last resort, direct threat) from 10 distal characteristics. Validated retrospectively against 73 lone actors across ideological categories.

Related terms

BNS § 113 and UAPA
BNS 2023 § 113 creates the general criminal offence of terrorist act in India. The Unlawful Activities (Prevention) Act 1967 (as amended...
Channel Programme (UK)
The referral and multi-agency assessment pathway within UK Prevent. Any public-sector professional can refer an individual; a Channel panel assesses vulnerability and...
Disengagement vs Deradicalisation
Disengagement: ceasing to participate in extremist activity without necessarily changing underlying beliefs. Deradicalisation: changing the beliefs and identity constructs that motivated extremism....
Leakage
Intentional or unintentional communication of intent to commit violence to a third party. One of TRAP-18's eight proximal warning behaviours and the...
McCauley-Moskalenko Two-Pyramid Model
Conceptual framework (Friction, 2011) distinguishing the opinion pyramid (distribution of extreme views) from the action pyramid (distribution of extremist behaviour). The two...
VERA-2R (Violent Extremism Risk Assessment)
Structured professional judgement instrument by Elaine Pressman and John Flockton (2010, revised) for known extremist individuals in contact with the justice or...

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