The issue is not that there is a further missing email but why that email was not submitted at the same time as the chain NC is working to establish it belonged to; that it started off, in fact. It was submitted in the second lot of disclosure on April 5.
If it was indeed the email that began the chain — and all evidence including its contents (ie to paraphrase: the first rule of Fight Club is don't talk about Fight Club) is hard to dispute — then what NC is seeking to establish is that there was collusion between senior managers, including witnesses, to thwart the course of justice. Ie to stitch SP up from the outset.
This is why the answer ‘you can’t prove it’ seems so telling.
It suggests they have also discussed submitting it later as a stand alone, ie not of the earlier chain — and agreeing that it would look bad for them if counsel for SP clocked that it was absent in the first iteration of disclosure but then reassured themselves that it wouldn’t matter because they wouldn’t be able to prove it. Perhaps someone has an IT pal who advises them.
The fact that there were 6 in the chain from the off, 7 when DU was added, and not one of them submitted this as part of that initial disclosure.
One reasonable argument JR could make, in my view, is that that first email was removed from the thread when DU was added because it might have been felt in appropriate to share that with him and, by accident, they only submitted the later chain rather than the original.
This, however, is rather exploded by KS claiming you can’t prove it was part of the chain. For that possible defence to work she should have said, I don’t know why it wasn’t there or, even better, someone probably removed it when DU has joined and it’s quite likely that none of us noticed.
That was not what she said however when pressed.
Either way the context is damning but I think NC is rightly incensed by the failure to disclose and seeks to substantially increase detriment if the judgement finds IB SPs favour.
It also, of course, either way almost wholly undermines the credibility of KS.