Former Police Officer Loses British Citizenship Over Kremlin Connections
Mark Bullen, a 45-year-old former policeman, has become the first British national to be stripped of his citizenship on national security grounds due to his extensive links with Russia. The unprecedented move by the Home Office follows years of concern over Bullen's activities and associations with the Russian state.
Airport Detention and Investigation
In November 2024, Bullen was stopped by counterterrorism officers at Luton Airport upon arriving from Turkey. Authorities detained him under Schedule 3 of the Counterterrorism and Border Security Act 2019, seizing his electronic devices for examination. Although he was not arrested, this incident marked a significant escalation in official scrutiny of his conduct.
The Metropolitan Police, which leads on hostile state cases, confirmed the detention was part of ongoing investigations into potential foreign state activity. A spokesperson emphasized that such measures are taken to protect national security interests.
Lifelong Fascination with Russia
Bullen, originally from Bracknell in Berkshire, has maintained a lifelong obsession with Russia that began in childhood. His fascination deepened during a month-long police exchange trip to St Petersburg, where he met with senior Russian officers. This experience reportedly solidified his connections within Russian official circles.
For nearly twelve years, Bullen has resided in St Petersburg, where he works in communications for Zenit St Petersburg, a top football team owned by Gazprom. He obtained Russian citizenship in 2022, describing it as achieving a "lifelong dream." Bullen is married to a Russian national and has four children, though he frequently returns to the UK to visit British family members.
Home Secretary's Decision
In October 2025, Home Secretary Shabana Mahmood revoked Bullen's British citizenship just one month after assuming office. The decision was made on grounds that deprivation was "conducive to the public good" and necessary for national security. Mahmood specifically warned that the details of the case should not be made public to protect security interests.
Bullen has publicly denied any wrongdoing, claiming his interest in Russia is purely cultural and personal. However, his social media profiles are filled with pro-Kremlin content and anti-Ukraine propaganda, raising serious questions about his allegiances.
Official Statements and Implications
The Home Office released a statement defending the deprivation decision as a vital tool against dangerous individuals and hostile state activities. A spokesperson explained: "Deprivation of British citizenship is used to protect the UK from some of the most dangerous people, including those involved in terrorism, hostile state activity, or serious organized crime. These decisions are never taken lightly, but this government will always take necessary action to keep our country safe."
This case represents a significant development in the UK's approach to national security threats, particularly concerning individuals with dual citizenship and foreign connections. It underscores the government's willingness to use extreme measures when faced with potential risks from hostile state actors.
Bullen's situation continues to draw attention as he remains in Russia, where he has built his life and career. The revocation of his British passport effectively severs his formal ties to the United Kingdom, though he maintains personal connections through family visits. This landmark decision may set precedents for how similar cases are handled in the future.



