"Edith looks up from a game of solitaire and casually mentions that she actually thinks the murder was committed by the accomplice, who was never found and is not on trial. But since the defendant’s lawyer did such a poor job exonerating him, she concludes, she’s going to deliver a guilty verdict. My jaw drops. No one questions her obviously flawed reasoning, because she’s on their side." This, for me, was the most t…
I don't really trust jury/layman to make the correct decision. I mean, you're taking ordinary people, untrained to probe the gobbyspeak of lawyers or matters of science And you're expecting them to render guilty or innocent verdicts?
It's that the society they live in finds them either guilty or not.
Jury's are representatives of what the society things happened.
It's an extremely democratic institution, and juries and their role they have been devised and praised by "trained people" including the very best legal minds.
Of course it's not fool prouf -- the same ways society and laws are not foul prof (e.g. consider racism). But those for things, an expert wouldn't help either.