The Speaker
Tuesday, 18 June 2024 – 15:43
Former UK Prime Minister, Theresa May

Former Prime Minister Theresa May criticises appointment of new National Security Adviser

Former UK Prime Minister Theresa May has criticised the appointment of David Frost to the post of National Security Adviser.

The appointment came after Sir Mark Sedwill, the UK’s top civil servant confirmed that he will step down from his role as Cabinet Secretary in September. 

Sir Mark Sedwill was appointed to the roles of Cabinet Secretary and UK National Security Adviser during Theresa May’s time as Prime Minister. Speaking in the House of Commons on Tuesday, Mrs May said that during her nine years as a member of the National Security Council she had “listened to the expert, independent advice from national security advisers”.

Speaking to Michael Gove, Minister for the Cabinet Office, Mrs May asked: “Why is the new national security adviser a political appointee with no proven expertise in national security?”


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David Frost, who was appointed to the role by the Prime Minister, is currently the UK’s chief negotiator with the European Union during post-Brexit trade talks. During exchanges in the Commons, Mrs May appeared to suggest that Mr Frost did not have the expertise needed to successfully complete the role of National Security Adviser.

In response to Mrs May’s question, Michael Gove said: “David Frost is a distinguished diplomat in his own right and it is entirely appropriate that the prime minister of the day should choose an adviser appropriate to the needs of the hour.”

The former PM expressed discontent though, shaking her head during Mr Gove’s response.




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