I asked: To ask Her Majesty's Government what plans, if any, they have for the police in England and Wales to follow the reported approach of Police Scotland of recording male perpetrators of rape or attempted rape who self-identify as female, as female on relevant police systems

... . (HL15056)
Tabled on: 19 April 2021
Answer:
Baroness Williams of Trafford:
... They replied: The Government takes all forms of sexual violence extremely seriously, regardless of between who it takes place or the profile of the perpetrator. Whether it is committed by...

... a woman or a man, sexual violence in any situation, is completely unacceptable.
A total of 162,936 sexual offences were recorded by the police in England and Wales in the year ending March 2020.
More details on the prevalence of sexual offences can be found at ...

... https://www.ons.gov.uk/peoplepopulationandcommunity/crimeandjustice/articles/sexualoffencesprevalenceandtrendsenglandandwales/yearendingmarch2020
It is an operational matter for the police to determine what relevant information should be recorded to assist in their investigation of individual crimes.
Home Office statisticians work with the Office for Statistics Regulation (OSR) on the quality...

... of data from the police. The OSR have issued guidance on the collection and reporting of data about sex in official statistics which informs on-going conversations the Department has with policing partners on the issue of data:
https://osr.statisticsauthority.gov.uk/publication/draft-guidance-collecting-and-reporting-data-about-sex-in-official-statistics/
I read this advice as

... "Parliament, specify in legislation what you mean by sex at any time when you want data collected, or accept whatever garbage you are given."

Amendments to the Police etc Bill will be forthcoming.