I honestly do not know if she knew or not.
I’ve got my own thoughts on it, as have we all, but there is no real evidence of it, if there was then given the amount spent on the investigation she would have been charged as well.
The only thing I would say is that all the comments about not being able to afford it on his salary so therefore it must have been obvious are nonsense.
He earned over £120k a year and had done for a long time, there was no mortgage on their home and many aspects of daily living were subsidised.
That before you count property wealth and money from savings etc..
It is not hard to believe that someone of his age, position and status could afford these purchases.
None of that means she didn’t know of course but the reasoning is wrong.