Mark Bullen’s British nationality has been revoked over security reasons, the Daily Mail has reported A former British police officer who has been living in Russia for more than a decade has been stripped of UK citizenship after being deemed a security threat, according to the Daily Mail. Mark Bullen, who worked for Hertfordshire Police for eleven years, received a letter from the Home Office last October informing him that his UK nationality had been revoked on “national security” grounds, the