Luton man jailed for terrorism offences after banned documents found

Abdullah bin Yassir, 23, was sentenced to two-and-a-half years in prison after detectives found several documents in his possession containing instructions on how to manufacture explosives, as well as other content linked to Islamist terrorism.

Yassir was arrested in July 2025 as part of an investigation led by the Eastern Region Special Operations Unit (ERSOU). A search warrant was executed at his home in Elmwood Crescent, Luton, with detectives seizing several digital devices.

Forensic examination of a phone revealed detailed documents setting out how to prepare explosive substances, including information on ingredients, safety measures and how to avoid detection.

Further evidence was retrieved from other devices illustrating an extremist mindset, including a video describing different methods for carrying out attacks and the use of vehicles, knives, and firearms. The investigation also revealed messages which expressed his support for violence and justified previous terrorist attacks.

Yassir was subsequently charged with three counts of collecting information likely to be useful to a person committing or preparing an act of terrorism (between 1 January 2025 and 7 June 2025) under Section 58 of the Terrorism Act 2000.

Rea more: UK Counterterrorism Police