Criminal Investigation and Arrest Following the damning revelations in the unsealed US Department of Justice files, the Metropolitan Police launched a formal investigation into Mandelson for misconduct in public office—a serious common law offense carrying a maximum sentence of life imprisonment. On February 6, 2026, detectives executed search warrants at his properties in Camden (London) and Wiltshire, seizing electronic devices and documents. This evidence-gathering culminated on February 23, 2026, when Mandelson was formally arrested on suspicion of misconduct in public office.
23Feb/26
