I'm just trying to get around my head around what the defense is actually claiming. Presumably they have some kind of story to tell about how the mushrooms got where they were and why Erin was unharmed. But for the life of me, I can't figure out what they contend actually happened.
I think they are trying to create a narrative that is kind of loose and flexible.
It seems to be something like :
---she happened to be out in nature, hiking one day last spring, and she came upon some fresh mushrooms. So she collected them. She didn't serve them fresh but decided to dehydrate them and save them for future use.
---she also bought some mushrooms in an Asian market, although she can't remember where it was, but again, she dehydrated them for longer shelf life.
---Apparently one of these tins of dried mushrooms smelled funny, but we don't know whether it was the foraged ones or the Asian market ones.
----Months later while preparing her 6 individual Beef Wellingtons, she decided to use one of the two groups of dried mushrooms. We have not been told which tin of shrooms she used for the luncheon. I guess that is up for debate.
--- She began to feel dizzy and have diarrhoea the night of the luncheon, but she did not know why.
Then when she realised her 4 lunch guests were hospitalised, she panicked and hurried home to tip the dehydrator because?
----Was it because she didn't want anyone to know she had dehydrated some foraged mushrooms?
-----Maybe they will admit that^^^ and say she was worried she had accidentally poisoned her guests, but that they cannot be sure if she really did---maybe it was the Asian mushrooms that were toxic, not her foraged ones?
So if there is reasonable doubt that she was the source of the toxic ones, her Defense will say she should be found not guilty.