Today the voters of Croydon North-West go to the polls in the first formal electoral test of the new Liberal/SDP alliance. At the General Election the Conservatives had a majority of nearly four per cent. This specially extended edition of Newsnight will carry a live declaration of the result, which is expected shortly after midnight. There will be on-the-spot interviews with the winner and losers and reaction in the studio from leading politicians of all parties plus the normal news and analysis of events of the day.