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Christopher Wylie and Paul-Olivier Dehaye questioned

23 March 2018

Following revelations last weekend from the Observer, Channel 4 and the New York Times that 50 million Facebook users' data was allegedly used by British firm Cambridge Analytica (CA) to micro target voters during the Trump campaign, the Digital, Culture, Media and Sport Committee questions Christopher Wylie and Paul-Olivier Dehaye.


Tuesday 27 March 2018, Thatcher Room, Portcullis House

At 10.30am

  • Christopher Wylie, former Director of  Research at Cambridge Analytica
  • Paul-Olivier Dehaye, co-founder of  PersonalData.IO


The Committee uses this opportunity to ask Christopher Wylie about his role with Cambridge Analytica and subsequent events.

Paul-Olivier Dehaye, also gives evidence as an expert on this subject, as someone who has challenged Cambridge Analytica in the past on their use of such data.

Weekly summary of Committee's activity

  • On Tuesday 20th March 2018, the Committee Chair Damian Collins MP wrote  to Mark Zuckerberg, CEO of Facebook, requesting evidence. The deadline for their response is Monday 26th March 2018.
  • On Thursday 22nd March 2018, the Committee wrote to Alexander Nix, the suspended CEO of Cambridge Analytica, recalling him to Parliament to give evidence. The deadline for his response is Tuesday 27th March 2018.
  • Mr Nix previously gave evidence to the Committee, as part of their inquiry into Fake News on Tuesday 27th February 2018. Read the transcript of the session (PDF 301KB).

Further information

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