You missed a big point. It's not that it's perfect proof, court cases never have that. It's evidence, that's all. When you put that together with other information it all adds up to a picture.
In the computer world you are used to perfect security or it's useless. It's not like that in most fields though.
In the computer world you are used to perfect security or it's useless. It's not like that in most fields though.