Peter Mandelson leaves his home in London earlier this month. JUSTIN TALLIS via AFP via Getty ImagesLord Peter Mandelson has been arrested on suspicion of misconduct in public office. A Metropolitan Police spokesperson said: “Officers have arrested a 72-year-old man on suspicion of misconduct in public office. Advertisement“He was arrested at an address in Camden on Monday, February 23 and has been taken to a London police station for interview. Lord Mandelson then gets into the left rear seat of a waiting unmarked Ford Focus police car.