Here is a link to video I downloaded from the Parlaimentlivetv website of CMO Whitty stating:
“If you look at the R, and the behaviours, quite a lot of the change that led to the R going below one occurred well before, or to some extent before, the 23rd, when the full lockdown started.”
It’s 23 MB so too big too e-mail.
You can download it yourself on their website - set the start time at 10:58:00 and end time as 11:01 - their instructions are easy to follow.
Please spread it around.