The European Elections in 1999
In the UK you have to be over 18 and a British citizen or an EU or Commonwealth citizen resident in the UK in order to vote in European parliamentary elections. You also have to be on the electoral roll. If you're an EU citizen, but not a British citizen then you additionally have to sign a form for the Electoral Commission stating that you will only vote in the UK and not in your country of citizenship. The queen cannot vote in elections!