RE: 17.28 LFD question21 Dec 2020 18:47
I've just looked at the press briefing after reading this thread, and my analysis is the questioner asked about half a dozen questions, or parts of questions, and the LFD part was first and got drowned by the rest.
The scientist was too busy answering some of the other points, and Boris kind of passed on it by saying in effect "up to the MHRA",