On 12 July 2002 the Foreign Secretary, Jack Straw, in a formal statement in the House of Commons, said that after twelve months of negotiation the British Government and Spain are in broad agreement on many of the principles that should underpin a lasting settlement of Spain's sovereignty claim, which included the principle that Britain and Spain should share sovereignty over Gibraltar.
Do you approve of the principle that Britain and Spain should share sovereignty over Gibraltar?
The Gibraltar sovereignty referendum of 2002 was a referendum, called by the Government of Gibraltar and held on 7 November 2002 within the British overseas territory, on a proposal by the UK Government to share sovereignty of the territory between Spain and the United Kingdom. The result was a rejection of the proposal by a landslide majority, with little more than one per cent of the electorate in favour.
Gibraltar portal 
Gibraltar portal