Digital ID can’t be gender self-ID
We all have a right to have the fact of our sex correctly and reliably recorded.
The government’s Data Bill must get sex right.

What’s the problem?
As the Sullivan Review has shown, many public bodies, including the Home Office, the NHS and the police, have replaced accurate data on sex with self-declared gender identity.
The government is now passing a Data Bill that will create a new system to allow people to prove their identity and facts about themselves using apps and online services with a government “trustmark”.
Unless the data problem is solved, the government will be putting a false and unreliable “proof” of sex in everyone’s pocket. Read our report.

What’s wrong with the data sources?

HM Passport Office
… HM Passport Office allows people to change their recorded sex with as little as a statement from themselves and one other person.

The DVLA
… allows people to change their recorded sex by making a declaration that they “solemnly and sincerely declare” they wish to live in the opposite gender.

The NHS
… allows people to change their registered sex on request. It then gives them a new NHS number.
Why does this matter?
The digital identity system will allow apps and services to provide reusable, government-assured verification of the “fact” that people are male or female, to let them apply for jobs or access services that are single-sex. Why does this matter?

Health and social care
Keeping people safe depends on knowing what sex they are. Medical diagnoses and drug prescriptions vary according to what kind of body you have, not what gender identity might be in your head.

Sport and leisure
Fairness and safety for women and girls depends on protecting the female category in sport, from elite level down to leisure activities. Showers and changing-rooms must also be women-only.

Women’s services
From hostels to refuges to rape crisis centres, networks of services for vulnerable people need to be able to communicate whether they are for women only or both sexes, and recognise and record the sex of the people they serve.
Take action now
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Update
URGENT ACTION: email your MP today on the Data Bill
The Supreme Court has confirmed that “sex” in the Equality Act 2010 means, and has always meant, “biological sex”....
5th May 2025
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Action
Write to Peter Kyle – don’t let digital ID be gender self-ID
Write to Peter Kyle MP, the Secretary of State for Science, Innovation and Technology, to get the sex data...
7th April 2025
Updates
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Update
House of Lords to debate digital identity amendments again
The Data Bill is back in the House of Lords this afternoon for the ‘ping pong’ stage of counter-amendments...
12th May 2025
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Update
Inaccurate sex data: excuses and bad arguments
On 7th May the House of Commons debated new clause 21, a proposed amendment to the Data Bill. It...
9th May 2025
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Update
URGENT ACTION: email your MP today on the Data Bill
The Supreme Court has confirmed that “sex” in the Equality Act 2010 means, and has always meant, “biological sex”....
5th May 2025
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Update
We call on Peter Kyle to guard the information gateway
Peter Kyle, the Secretary of State for Science, Innovation and Technology, is steering the Data Bill through Parliament. It...
11th April 2025
In the media
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Maya Forstater on LBC, 20th March 2025
Maya Forstater discusses the Sullivan Review with Shelagh Fogarty.
21st March 2025
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Public data should not conflate sex and gender, review says
Aoife Walsh and Euan O’Byrne Mulligan for BBC News report on the Sullivan Review and how it found that...
20th March 2025
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Is the government sleepwalking into a digital disaster?
The digital identities framework needs to account for individuals’ sex, says James Arbuthnot.
4th March 2025
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Digital ID flaws risk Post Office-scale scandal, peer warns
Inaccurate recording could lead to incorrect or inappropriate care, fears Lord Arbuthnot – Geraldine Scott reports (paywalled).
3rd March 2025
Resources
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Publication
Data Bill – briefing for House of Lords debate on 12th May 2025
Following the recent Supreme Court judgment which has confirmed the importance of biological sex as a characteristic in life...
12th May 2025
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Publication
Data Bill: amendment NC21 – briefing for Parliamentarians
Report stage – House of Commons 7th May 2025 Large-print version of this briefing.
5th May 2025
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Publication
The Sullivan Review and the Data Bill – Parliamentary briefing
The Review of data, statistics and research on sex and gender was published by the Department for Science, Innovation...
20th March 2025