I received in a UK Government FOI answer this link:
https://www.gov.uk/government/publications/lateral-flow-device-performance-data
In it is this document:
For 2 years Government has been claiming that the PCR test for coronavirus is "the gold standard" and that this test is what the lateral flow tests were calibrated and tested against to prove how accurate they are.
Pity that in the document above it contains the following statements:
"There is currently no gold standard test for transmissible virus "
and
"As PCR is an imperfect gold standard"
So not quite what Government has led people to believe is it?