AI-implicated cases
Every case in Tech Against Terrorism’s CT Casebook where AI is implicated and a court record, a prosecutor or police statement, or an official report says so. Some are terrorism cases; others are violent or serious crimes the Casebook tracks because AI is implicated.
- Every AI-implicated case in the CT Casebook with a court, prosecutor, police or official source that records the AI use.
- Cases the Casebook holds only from press reporting are not listed.
- Each entry says whether it is a terrorism case and links its primary source.
- Only cases that ended in a conviction or a guilty plea are listed.
- AI products are described by type, not named.
- No operational detail and no AI output is reproduced.
- Cases
- 5
- Convicted
- 5
- Countries
- 2
CT Casebook, October 2026
Convicted
Cases that have ended in a guilty plea or a conviction. The AI use is recorded in the sentencing remarks, the charging documents or a prosecutor or police statement.
Mohamed Mohamoud
Convicted2026 · United Kingdom
Mohamoud flew from Heathrow to Somalia in January 2025 to join Islamic State. The Crown Prosecution Service says that on arrival he messaged an AI bot used to put people in contact with the group and was put in touch with a recruiter. He was convicted of preparing acts of terrorism in August 2026 and in October 2026 received a 16-year extended sentence, 12 years of it in prison.
Michael Gann
Convicted2026 · United States
Not charged as terrorism. Federal prosecutors say Gann built improvised explosive devices in 2025, stored several on rooftops in Manhattan and threw one onto subway tracks. According to the sworn criminal complaint, he told investigators after his arrest that he had used artificial intelligence to learn which chemicals to buy and mix. He pleaded guilty to federal explosives and firearms offences in January 2026.
Brett Michael Dadig
Convicted2026 · United States
Not a terrorism case. Federal prosecutors in Pennsylvania say that, relying on advice from an AI chatbot, Dadig tried to meet women at gyms, then harassed, stalked and threatened them and gym staff online and in person. He pleaded guilty in March 2026 to 11 counts of cyberstalking, interstate stalking and interstate threats.
Ryan Schaefer
Convicted2026 · United States
Not a terrorism case. The sworn police statement says that about ten minutes after damaging 17 cars in a Missouri State University car park in August 2025, Schaefer described what he had done to a chatbot and asked about the consequences; police recovered the conversation from his phone. He pleaded guilty to felony property damage in May 2026.
Jaswant Singh Chail
Convicted2023 · United Kingdom
On Christmas Day 2021 Chail entered the grounds of Windsor Castle with a crossbow, intending to kill Queen Elizabeth II. The sentencing remarks record that in the weeks before, he discussed his plan at length with an AI companion he had created on a chatbot app and asked it for advice on when to act. He pleaded guilty to an offence under the Treason Act and two other offences, and was sentenced to nine years in custody in October 2023.
Compiled from Tech Against Terrorism’s CT Casebook, a continuously updated corpus of counter-terrorism cases, and checked against the court, prosecutor, police and official sources linked on each entry. Where a court document is hosted by a news outlet or a court-records archive, the entry says so. Public access to the Casebook is forthcoming.
Last updated 20 October 2026