Sir Julian Lewis: The Secretary of State deserves our sympathy for having to negotiate such an ethical minefield. Will he tell us whether the data exists from all the people who had puberty blockers under the old regime? He mentioned having met one person for whom they had worked well and one person for whom they were a disaster. Surely it should be possible to do a systematic survey of the dozens, if not hundreds, of people who went through that. Might that be a more constructive and less dangerous way forward?

[The Secretary of State for Health and Social Care (Wes Streeting): The right hon. Member is right that we need that data linkage study. That will happen, but it will not produce the same evidence base as a clinical trial, and that is the distinction between the two. It is frankly a disgrace that people have sought to withhold that kind of data and it is really important that we get this right.

I appreciate the right hon. Member’s sympathy. I have wrestled with this issue probably more than any other ethical decision that I have had to make in this office. I do not seek any pity or sympathy for doing so – it is the job that I signed up to and a job that I love doing. I have taken great care and sensitivity in this area because of the particular vulnerability of this group of children and young people.]