Two letters in today's Daily Telegraph struck a chord and sure enough a little detective work has paid off.
The two letters in question are those from Andy Burnham and Jon Newman. From both, two extracts:
"All ministers take care to base any public statements on the advice of the Chief Medical Officer...."
Jon Newman, quoting Sir Liam Donaldson, Chief Medical Officer:
"The scientific advice on face masks is that they are of very little value. They get moist, which enhances the virus. And because the virus is so small it can go through the pores. They also give a false sense of security."
Then from the BBC we get a report of a public statement, in the Commons, from Andy Burnham that 226m face masks have been ordered!
With acknowledgements to both Dick Puddlecote and Trixie.