There was a male MP stabbed by a female some years ago.
And? So because of something that happened 'some years ago' every male MP is entitled to manhandle a woman?
At the time, the people present may have been scared and angry.
And yet.... none of the other men - or women - at the table seemed that bothered by her. In any case, being 'scared and angry' doesn't give you carte blanche to do what you like.
If he knew FOR SURE that she was unarmed then he could be seen to be disproportionate
Huh? So one has to prove oneself FOR SURE to be unarmed or else you're fair game?
What is the record of climate change activists in the UK being armed, such that one would have a reasonable fear of this enough to warrent such behaviour from Field?