Alfie Coleman is in custody after being convicted of planning a terrorist attack following an MI5 sting operation. The 21-year-old neo-Nazi from Great Notley, Essex, was found guilty at the Old Bailey on 30 April 2026 of preparing an act of terrorism, and was remanded in custody awaiting sentencing on 8 July 2026.

Who Is Alfie Coleman?

Alfie Coleman is a 21-year-old man from Great Notley, a village in Essex. Before his arrest, he worked part-time at a Tesco supermarket. He had no significant prior criminal record, but investigators uncovered evidence showing that he had been immersed in extremist far-right ideology from early adolescence. His radicalisation began when he was as young as 14 years old, when he began seeking out neo-Nazi material online.

The case highlighted how online radicalisation can take hold in relatively ordinary domestic settings. Coleman used his personal devices to access extremist content and compile detailed plans for violent attacks. Despite this, he had no outward public profile as an extremist and had not previously been the subject of a formal counter-terrorism investigation before the operation that led to his arrest.

How Did Alfie Coleman Become Radicalised?

From the age of 14, Coleman began downloading and consuming extreme right-wing material, including neo-Nazi texts accessed on his personal devices. Over several years, he developed an increasingly violent worldview, compiling lists of people he regarded as enemies — including colleagues and customers at his workplace — whom he branded with racial slurs or labelled as traitors for their perceived views on race.

His plans for violence escalated significantly over time. Evidence presented at trial included written notes in which Coleman had drawn up targets for potential terrorist attacks. These included plans to hijack a plane, target the home of the Lord Mayor of London, place explosives in a cash machine, and use knives and crossbows in attacks. The targets reflected the ideology of the extreme right-wing groups whose material he had been consuming since childhood.

The MI5 Sting Operation

Intelligence services became aware of Coleman’s activities and mounted an undercover operation to gather evidence of his intent and capability. The sting culminated on 29 September 2023 in a Morrisons supermarket car park in Stratford, east London. In that meeting, Coleman handed over £3,500 in cash to an individual he believed to be a criminal arms dealer. In return, he retrieved a holdall from the boot of a Land Rover Discovery containing a Makarov pistol, five ammunition magazines, and 200 rounds of ammunition.

The firearms were, in fact, controlled items provided as part of the undercover operation, and Coleman was arrested shortly after taking possession of them. The MI5 sting provided prosecutors with direct evidence that Coleman had taken a concrete step towards carrying out a terrorist attack — moving from planning and ideology into the attempted acquisition of weapons.

The Trial and Conviction

Coleman had previously admitted 12 separate offences arising from the investigation. Following a trial at the Old Bailey, he was additionally convicted on 30 April 2026 of preparing an act of terrorism — the most serious charge he faced. The combination of his guilty pleas and the jury’s verdict meant he stood convicted of an extensive range of terrorism and related offences.

The Old Bailey is England and Wales’s senior criminal court and handles the most serious criminal cases, including terrorism prosecutions. Coleman was remanded in custody immediately after the verdict and will appear before the court again on 8 July 2026 for sentencing. Until that date, he is held in a Category A or high-security remand facility, as is standard for defendants convicted of terrorism offences.

What Sentence Does Alfie Coleman Face?

Terrorism offences of this severity carry very significant sentences under UK law. Preparing an act of terrorism under Section 5 of the Terrorism Act 2006 carries a maximum sentence of life imprisonment. Given that Coleman was convicted of this offence along with 12 others to which he had already pleaded guilty, and given the scope and seriousness of his plans, legal commentators anticipate a lengthy custodial sentence.

Individuals convicted of serious terrorism offences in England and Wales are typically designated as Category A prisoners — the highest security classification — and held in the small number of maximum security prisons in the estate, such as HMP Belmarsh, HMP Frankland, or HMP Full Sutton. The Parole Board plays a central role in determining when — if ever — terrorism convicts are considered safe for release.

Frequently Asked Questions

Why is Alfie Coleman in prison?

Alfie Coleman is in custody after being convicted at the Old Bailey on 30 April 2026 of preparing an act of terrorism. He is a 21-year-old neo-Nazi from Essex who was caught in an MI5 sting operation after attempting to buy a pistol and 200 rounds of ammunition. He had previously pleaded guilty to 12 related offences. He is remanded in custody awaiting sentencing on 8 July 2026.

What did Alfie Coleman plan to do?

Alfie Coleman compiled plans for a range of terrorist attacks, including targeting a mosque, the home of the Lord Mayor of London, and other locations. He sought to acquire firearms and had explored using explosives and other weapons. His radicalisation began at the age of 14 and developed over several years through online exposure to neo-Nazi material. He was caught when he purchased what he believed to be a real pistol and ammunition from an undercover MI5 operative.

Has Alfie Coleman been sentenced yet?

No. As of May 2026, Alfie Coleman has been convicted but has not yet been sentenced. His sentencing hearing is scheduled for 8 July 2026 at the Old Bailey. He is remanded in custody in the period between conviction and sentencing. Given the nature and number of his offences, he is expected to receive a substantial custodial sentence.

What sentence could Alfie Coleman receive?

Preparing an act of terrorism carries a maximum sentence of life imprisonment under Section 5 of the Terrorism Act 2006. Alongside his conviction for this offence, Coleman had already admitted 12 further charges. Sentencing will take all of these matters into account. Legal observers expect a lengthy custodial term. A full update will be available after the 8 July 2026 sentencing hearing.

Which prison will Alfie Coleman be sent to?

Terrorism convicts of this seriousness are typically classified as Category A prisoners and held in maximum security establishments. In England and Wales, these include HMP Belmarsh in London, HMP Frankland in County Durham, and HMP Full Sutton in Yorkshire. The specific prison Alfie Coleman is assigned to will depend on risk assessments and operational decisions made by His Majesty’s Prison and Probation Service following sentencing.