Lord Mandelson: Response to Humble Address

Debate between John Hayes and Darren Jones

Wednesday 3rd June 2026 Commons Chamber

[Darren Jones]

In relation to the first part of the right hon. Gentleman’s question, he will know, because I have confirmed it to the House at the Dispatch Box previously, that questions were put by the Prime Minister’s former chief of staff to Peter Mandelson following the due diligence report to seek further information about the stories reported in the newspaper. He will also know that Peter Mandelson replied to those questions, and that information was then considered by those in No. 10.

As I have confirmed to the House, that document—the question and its answers—is one of the documents being held by the Metropolitan police. I have been advised repeatedly that I am not permitted to disclose what I have seen in that document on the Floor of the House, so I am afraid it will have to be one of those questions that remains until such a time as the Metropolitan police publishes its documentation. In relation to the second part of the right hon. Gentleman’s question, I refer him to the Paymaster General’s answer earlier today. That is the answer to that question.

This is my 11th update to the House on this matter, and I am grateful for the opportunity to answer Members’ questions. I will speak to a number of issues first, before turning to some specific questions from Members and setting out what the Government intend to do next.

Since the Humble Address motion was passed on 4 February, the House will know that a huge disclosure exercise has been undertaken by Government officials. The motion called for the disclosure of documents in respect of the appointment and dismissal of Peter Mandelson as His Majesty’s ambassador to Washington, alongside relevant communications. The publication of documents on 11 March, followed by the second tranche on Monday, has done that, in the Government’s view. I hope the Government have provided the House with the reassurance it needs that, with the exception of the small number of documents withheld at the request of the Metropolitan police, which we intend to publish when we are allowed to do so, the Government have discharged their duties to the House in relation to the Humble Address.

[Sir John Hayes]

In those terms, at what point did the Metropolitan police ask for the vetting summary? Clearly it is now a known fact that there was an assumption that that vetting summary, but not the granular detail, was likely to be published, albeit in a redacted form, having been through the normal process.

[Darren Jones]

If the right hon. Member will forgive me, I have noted that question from earlier in the debate, and I will come to it in a grouping shortly.

I note the comments and questions today from Members on the process that officials have led to support the Government in responding to the Humble Address. As I have said each time I have been at the Dispatch Box, the Government have taken their obligations to comply with the Humble Address seriously and, in their view, have done so in full.

I hear the calls of some Members for the Government to provide further detail on Peter Mandelson’s vetting. As I told the House on Monday, we have shared the vetting summary and recommendation with the Intelligence and Security Committee. However, the vetting inputs collected as part of those investigations would never be published, because if the Government did so, people would feel unable to answer those questions honestly and frankly in any UK Security Vetting investigation in the future—a point that was made by the hon. Member for Tunbridge Wells (Mike Martin), who has been through that process. That would undermine our national security—not just in this instance, but the very basis of the national security system itself. It would have far-reaching impacts that no responsible Government rightly should entertain.

On that basis, I welcome the comments from the Chair of the Intelligence and Security Committee, Lord Beamish, on Monday night. He said that he

“agrees with the Government that the larger vetting documents shouldn’t be released to the Committee”

because of the potential impact on the vetting system. The former National Security Adviser, Lord Sedwill, wrote in a letter published in The Times today that

“the Intelligence and Security Committee (ISC) has seen a summary of the issues that vetting inevitably raised. That should be sufficient for Parliament to judge the Prime Minister’s handling of this episode. Any Humble Address requiring disclosure of Lord Mandelson’s detailed submissions or vetting file would be a serious mistake.”

In the other place yesterday, Baroness Manningham-Buller, the former director general of MI5, said:

“I know that security vetting is very detailed—I have been subjected to it many times myself. It goes to your school, education, employers and friends, and people speak frankly. If for one moment they felt it was going to be published, security vetting designed to protect the most secret information would be of little value. Whatever else we do, we must hold on to that. However tempting it would be, for whatever reason, to know the full contents, they must not be revealed. I am talking not about this case but about a general principle.”—[Official Report, House of Lords, 2 June 2026; Vol. 856, c. 764.]

I hear the arguments put by right hon. and hon. Members in the House today, but I do say that not just the Government’s position, but the advice from the Chairman of the Intelligence and Security Committee, a former National Security Adviser and a former director general of MI5 should be taken seriously.

--- Later in debate ---

[Darren Jones]

I share the expectation of my right hon. Friend that there would be a difference between commercial mitigations—for example, what investments there may be in particular companies—and mitigations that may have arisen from national security considerations. What I do not know is whether that was the case and how they were dealt with in any particular instance, because I do not have that information to hand.

Lastly on this first group of questions, the right hon. Member for South Holland and The Deepings (Sir John Hayes) asked me to confirm the relevant detail in relation to the Metropolitan police dates and documents. As I have set out previously, I have been advised that I am not permitted to put that on the public record, but I am happy to go back to the Metropolitan police to see if there is anything further that we can add in due course.

[Sir John Hayes]

When the Metropolitan police have concluded their investigation, all of that material will return to the ISC, and presumably the Government will then want to publish the information, albeit in an appropriate and redacted form.

[Darren Jones]

Again, I do not know which documents the Metropolitan police have, so I cannot speak to them specifically, but I share the sentiment of the right hon. Gentleman’s point.

The shadow Chancellor of the Duchy of Lancaster asked me to confirm that there was a leak inquiry under way in relation to what appears to be information from UKSV being in the hands of Guardian journalists. I can confirm that that leak inquiry is under way but has not yet concluded.

Questions of judgment and due diligence have been put to me. I have already answered the point about the follow-up questions to the due diligence report and can only reiterate to the Liberal Democrat spokesperson, the hon. Member for St Neots and Mid Cambridgeshire (Ian Sollom), the words of the Prime Minister when he said that he regrets the appointment and has apologised for it.

The deputy Chair of the Intelligence and Security Committee, the right hon. and learned Member for Kenilworth and Southam (Sir Jeremy Wright), made the helpful suggestion that we should think about codifying the precedent on which the Government rely when making redactions for the future. I commit to taking that away and taking advice, not least on what that might mean in terms of House business and Government business.

My hon. Friend the Member for Putney (Fleur Anderson) made some interesting points about how Humble Addresses may be used in the future, given that the House seems to have decided that it wants to use them more often than has been the case in the past. I was then asked by my hon. Friend the Member for Liverpool West Derby (Ian Byrne) to confirm the Government’s continued commitment to the duty of candour legislation, which I can confirm. As he knows, there have been discussions with families and others about refining some of the final points in that legislation. The hon. Member for Aberdeen North (Kirsty Blackman) asked me about freedom of information requests, and I commit to taking that question away and asking officials to try to respond as promptly as possible.

As the Prime Minister has set out, there are clearly significant lessons to be learned from the issues that arose from Peter Mandelson’s appointment, so while the Government consider that they have now duly discharged their obligations in respect of the Humble Address, they will none the less continue work on a number of important areas. Those include our commitment to bring forward legislation to ensure that peerages can be removed from disgraced peers, noting that Peter Mandelson has already been removed from the list of Privy Counsellors, and changing the process for direct ministerial appointments so that due diligence and national security vetting must take place prior to announcement.

Lord Mandelson: Government Response to Humble Address

Debate between John Hayes and Darren Jones

Tuesday 19th May 2026 Commons Chamber

[Darren Jones]

I thank my hon. Friend for his question, and I refer him to my previous answer.

[Sir John Hayes (South Holland and The Deepings) (Con)]

The Minister will be aware that on 21 April the ISC, on which I sit, made it clear that the

“Humble Address does not allow for documents to be withheld from Parliament, only for redactions to be made where the ISC has agreed to them.”

Last week, we were obliged to issue a further statement saying that it had come to our attention that documents were being withheld from the ISC. The right hon. Gentleman may feel that that is justified, but the Humble Address does not permit it. The point is that he is confusing scrutiny with disclosure. The ISC is well used to making judgments about what is made public. That is why the House chose the ISC as the mechanism to deal with these matters. Will the right hon. Gentleman confirm that, in line with the Humble Address, all material will be submitted to the ISC? In particular, will he confirm that there was no document or any communication—emails and so on—related to the mitigation of any risks associated with Peter Mandelson’s appointment?

[Darren Jones]

All documents that are in the scope of the Humble Address will be published in the normal way. On the right hon. Member’s question about the work of the Intelligence and Security Committee, any redactions that had any relationship with international relations or national security have been submitted to the Committee for its consideration. As he knows, and as I have confirmed to the House, that process has concluded. I think he is asking me again about personal data, and I refer him to my statement, which makes the point that compliance with the Humble Address sits in the context of the Freedom of Information Act, the ministerial code and motions passed by both Houses about how to comply with such a motion. As I have said, all further information will be published in due course.