A new rule requires all members of the Met to declare if they are members of the Masons or similar secretive organisations. SDo far over 300 have made such a declaration. But near the end of the BBC report we read:

The UGLE (United Grand Lodge of England) has previously said that the reporting requirement could undermine the public credibility of Freemasons and could breach their human rights and GDPR rules. It also claimed that less than 5% of officers and staff completed the survey on the issue.


My emphasis. So even a tiny percentage who have complied with the requirement -- "less than 5 per cent" -- still reveals over 300 Masonic members in the force.