This week we wrote to the UK Statistics Authority about concerns over the way in which statistics about coronavirus testing in the UK are being presented and communicated to the public. In June, the Prime Minister used some inaccurate figures during Prime Minister’s Questions when asked about how quickly Covid tests were being turned around. He said that all tests at testing centres and mobile testing units at the time were turned around within 24 hours, when data published more recently shows that the number of tests turned around in that time was much smaller. After we put the newly published data to them, they didn’t respond directly and sent us some background points. New data published on 4 July shows that fewer than 100,000 tests were actually processed by a lab on 30 April, but the government also counted those that were posted.