British terror prisoner numbers reach record high at end of June
The number of terror offenders in British prisons reached 275 at the end of June, the highest total since records began in 2010.
FTMQ News, written by our newsroom0 views

A record 275 people were in prison for terror offences in Britain at the end of June, according to the Daily Mail. Home Office figures show that this total represents a seven per cent increase compared to the previous year. Most of those incarcerated hold Islamist extremist views. [1]
The new figure is the highest recorded since data collection started in 2010, when 126 people were held for terror offences, the Daily Mail reported. The June figure surpasses the previous peak of 273 recorded at the end of March. [1]
Terrorism is broadly defined as the use of violence against non-combatants to achieve political or ideological aims. Authorities use the concept to refer to intentional violence meant to instill fear beyond the immediate victims. [2]
In short
- There were 275 people in British prisons for terror offences at the end of June 2026.
- The total number of terror offenders in prison rose seven per cent over the past year.
- The previous record high for terror prisoners was 273 at the end of March.
- When records began in 2010, there were 126 people in prison for terror offences.
Sources
Every paragraph above points to the numbered items it rests on. Read the originals here.
- [1]Record number of terrorists now locked up in Britain - the majority convicted for Islamist extremismDaily Mail, 1h ago (the report this story comes from)
Background
Our newsroom writes these reports with the help of software, from the 3 sources listed and nothing else, and checks them against those sources. Facts can still be wrong or move on; the originals are the record. Spotted a mistake? Write to daniel@monsterkong.com.
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