Homegrown: U.S. Federal Cases Against ISIS

Authors

Seamus Hughes, National Counterterrorism Innovation, Technology, and Education CenterFollow
Callie Vitro, University of Nebraska at OmahaFollow
Camden Carmichael, National Counterterrorism Innovation, Technology, and Education CenterFollow
Mackenzie Harms, National Counterterrorism Innovation, Technology, and Education CenterFollow
Austin C. Doctor, University of Nebraska at OmahaFollow

Document Type

Report

Publication Date

9-2025

Abstract

The Islamic State of Iraq and Syria (ISIS) is a transnational Salafi-jihadist terrorist group, designated as a foreign terrorist organization (FTO) by the U.S. Department of State. Since 2014 when the leader of ISIS declared the global caliphate, 263 individuals have been federally charged with ISIS-related crimes in U.S. courts. Since ISIS is a designated FTO, most cases (72.6%) involving ISIS-related activity are resolved using the material support to terrorism statute. This brief summarizes the scope of federal court cases related to ISIS in the U.S. since 2014.

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Recommended Citation

Hughes, S., Vitro, C., Carmichael, C., Harms, M., and Doctor, A. Homegrown: U.S. Federal Cases Against ISIS Adherents. A technical report from the National Counterterrorism, Innovation, Technology, and Education (NCITE) Center based on work supported in part by the U.S. Department of Homeland Security under Grant Award Number, 20STTPC00001-05. Omaha, NE.