rationalskepticism.org

I can only imagine that people making the accusations didn't see him. He spoke very slowly and at times appeared as if English did not come naturally to him (Chinese origin) but he also came across as being thoughtful and very careful with his choice of words. Several times he was at great pains to point out to the jury the difference between fact and opinion - for example powder burns were an observable fact but what that indicated about the range of the gun when fired was an opinion.

So the idea that Dr. Shiping Bao performed "poorly" is kind of stupid. Quite apart from anything else, he's not a "performer". We don't judge evidence based on charisma and empty rhetoric, but on factual content.