A former Scotland Yard commander has said a heist on two of the capital's most upmarket shops may have been an inside job. Raiders smashed windows at Omega and De Beers jewellery stores in the Royal Exchange shopping centre in the City of London on Saturday night. Ex-Flying Squad officer John O'Connor told BBC Radio 4's Today programme: "The villains did not drive up on the off-chance they could get through security gates. There is always the suspicion that they had somebody on the inside."