Petition · past parliament

Review validity of EU Referendum based on involvement of Cambridge Analytica.

Rejected 12 signatures

What the petition asks

I wish that the processes and services used during the Leave campaign, prior to the EU referendum, should be reviewed and the impact on the result assessed. If unethical, or possibly even illegal methods were adopted, then the result should be declared void and a new referendum held.
Cambridge Analytica was involved with the Leave campaign during the 2016 EU referendum. Now that the CEO of this company has been barred, by the Government's own Insolvency Service, from being a company director for offering unethical political services, which have been admitted, result should be reviewed.
See: https://www.gov.uk/government/news/7-year-disqualification-for-cambridge-analytica-boss
and:
https://www.dw.com/en/what-role-did-cambridge-analytica-play-in-the-brexit-vote/a-43151460

Why it was rejected

It was not clear what the petition asked the UK Government or Parliament to do.

We understand that you are concerned about the conduct of the EU referendum, but it's not clear exactly what you want the Government to do about this.

Your petition refers to the result of the EU referendum being declared null and void depending on the findings of a review of conduct of the referendum, but since the referendum the UK has left the EU, and a second referendum would not change this.

We also couldn't accept a petition calling for an investigation into an individual organisation, such as Vote Leave or Cambridge Analytica. We could accept a petition calling for an inquiry into the conduct of the EU referendum, followed by a referendum on rejoining the EU.

Timeline

25 Sep 2020 Petition opened for signatures
22 Oct 2020 Rejected by the Petitions Committee

Key facts

Signatures 12
Status Rejected
Rejected 22 Oct 2020

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Source: the official petition page. Last checked 15 Jul 2026.