Former HMRC Worker Who Called Himself 'Genocidal Racist Monster' Jailed After BBC Undercover Exposé

A former HM Revenue & Customs worker who described himself online as 'the ultimate genocidal racist monster' and 'a white totalitarianist' has been jailed for two years after a BBC Wales investigation exposed his involvement with a far-right group and his alleged misuse of his position at the tax authority.

Thomas Webster, 29, from Lapworth, Warwickshire, was sentenced at Warwick Crown Court on 7 September 2026 after admitting 12 offences involving material intended to stir up racial, religious and hatred based on sexual orientation. He was an active member of Patriotic Alternative, a far-right group, when the BBC investigation took place.

Exposed on the Job and off It

Webster came to wider public attention in January 2025 when he appeared in the BBC Wales documentary Unmasked: Extreme Far Right. An undercover reporter spent a year infiltrating Patriotic Alternative and secretly filmed Webster at two of its events in 2024, including a summer camp.

During the footage, Webster boasted about misusing his position at HMRC. He said he liked to give non-white individuals of the public what he described as 'bad information which sounds interesting', adding that he was 'deliberately trying to sabotage them'.

The revelations prompted HMRC to launch an internal investigation. Webster was dismissed in February 2025, one month after the documentary was broadcast.

A Trail of Threats Online

The broadcast also led to a criminal investigation by Counter Terrorism Policing West Midlands. Warwick Crown Court heard that Webster's offensive postings spanned multiple accounts across X and Substack, with counter-terrorism officers using digital forensics to link the profiles to him.

Prosecutors said that, between September 2024 and September 2025, Webster published material calling for the torture, execution and extinction of Jewish, gay and Muslim people. He also expressed a desire for the 'total genetic extinction' of people from South Asia in his Substack account.

In other posts, Webster wrote that 'the next Hitler will be a man like me!' and warned that, if a migrant hotel were placed on his road, he would 'prepare for murder and prison time, I am serious'.

Separately, BBC journalists found other posts (not part of the charges against him) in which Webster praised Adolf Hitler and the Nazis and suggested that several prominent politicians should be killed or subjected to sexual violence.

Webster was arrested in September 2025 and released on bail with conditions restricting his internet use and banning him from social media.

Despite those restrictions, he continued posting extremist material through a Substack account. Much of it remained online until shortly before his sentencing. BBC News identified the account and alerted Substack, which then removed most of the material.

Warning Signs HMRC and Police Had Already Seen

The case also revealed a history of concerns about Webster. Police searching his home found a crossbow, still in its packaging, hidden in the attic, the court was told.

The court heard that Webster had been referred to the government's Prevent programme four times, the first in 2017 over links to a far-right group. Police said separately that he had previously been investigated over racially aggravated offences.

Webster had also previously been investigated over racially aggravated offences. Those incidents took place before the BBC's undercover investigation exposed his activities at HMRC and within Patriotic Alternative.

Guilty Plea and Sentencing

Webster pleaded guilty at Coventry Magistrates' Court on 5 August 2026 to 12 public order offences. The charges included 10 counts of publishing written material intended to stir up racial hatred and two counts of publishing written material intended to stir up hatred on grounds of religion or sexual orientation.

Judge Anthony Potter rejected defence arguments about Webster's social isolation and limited prospects for rehabilitation outside prison. The judge said Webster's online activity had enabled him to escalate his offending and propagate what he described as harmful views.

Webster was sentenced to two years in prison. He will serve one year in custody, with the remaining year on licence.

Platforms Acted Only After BBC Contact

The BBC's reporting continued beyond the original documentary. Racist posts remained available on X for weeks after Webster entered his guilty pleas. They were removed after the BBC alerted the platform, which declined to provide further comment.

The Substack account identified by BBC News shortly before sentencing contained references to Webster's arrest, personal information and further extremist material.

It included the post referring to the 'total genetic extinction' of South Asians, as well as comments in which Webster appeared to acknowledge that he was continuing to publish material despite his bail conditions.

Substack removed most of the posts after being contacted by the BBC. One post linked to a criminal charge was reportedly still online. Both X and Substack had previously closed other accounts operated by Webster for breaches of their policies on hateful conduct.