A former Scotland Yard detective has told BBC News he was "shocked" by the amount of pornography viewed on a parliamentary computer seized from the office of Damian Green. Neil Lewis said "thousands" of thumbnail images containing legal pornographic material had been found nine years ago on a desktop device in the Westminster office of Mr Green - who is now first secretary of state (Theresa May's deputy). Mr Lewis examined the computer during a 2008 inquiry into government leaks and has not spoken publicly before. Mr Green, Conservative MP for Ashford, Kent, has denied the allegations, saying he never watched or downloaded such material on the computer. What will happen to the border between Northern Ireland and the Irish Republic after Brexit?