The Burden of Proof is always on those who need to be right.
Doing the right thing for others is called justice.
When the right thing for another is seen as revenge or compensation, that is what justice means.
It is not possible to have positive proof of a negative action.
I cannot positively prove what someone hasn’t done.
It is possible to have negative proof of a positive action.
That is having no proof of what was actually done.
What makes proof confusing is when positive proof is seen as good rather than true.
This makes negative proof bad or even evil instead of being untrue.
What makes proof a burden is the belief about what is right for other people.
Believing that I know what is right for another makes me an ass.
It is not the Law that is an ass or a beast of burden, but my perspective of what I believe is right for other people.
The need to be right places a heavy burden on my Self & my approval of my Self.