A spokesperson for the Home Office has confirmed that everyone who voted Leave in the June 2016 EU referendum will be required to write to the Electoral Commission and opt-in to confirm their decision because of upcoming GDPR laws throughout the European Union.

As the United Kingdom will still be in the European Union when the General Data Protection Regulation comes into effect on 25th May 2018, any Leave voters who have not confirmed their decision in writing by this date could have their votes disregarded.

Under current legislation, Remain voters will not need to do the same because of a loophole in the Maastricht Treaty.

The new European law states that anyone who is already on a mailing list will be required to ‘opt-in’ to ensure that they continue to receive communications, and leading Remain campaigners have successfully proved in the Supreme Court that the same principle applies to the EU referendum – this is because of the little-known legal principle of protractus dubius.

A source said, ‘Protractus dubius clearly states that an election is subject to legal implications in the time period between a decision being taken and the result being implemented.’

‘While a general election or local elections are almost immediate in the way that the decision takes effect, the result of the 2016 EU vote will be effectively ‘protractus’ between June 2016 and March 2019.’

‘This is why GDPR has created the need for around 17.4 million to pop a quick letter over to their nearest electoral office.’

‘Emails can’t be accepted because most email spam filters detect emails written entirely in capitals and throw the message into junk.’