After procedural faults, the first place you would look is the testimony.
edit: Actually, I should be more miffed at the French-Canadians bullshit, having volunteered for the Innocence Project and similar, she totally undersells the "angle" these groups take. Which is any and all.
Now, they told me many times that I wasn't a lawyer despite my self-proclaimed law degree, but I could definitely read court transcripts and mark up testimony that the so-called "official" lawyers would then check versus the "angle" they were working. And once they got to know me personally, I was allowed to mark and check things I found fishy myself even if they still would claim I wasn't a lawyer because I didn't go to "law school" and "pass the bar" and "get licensed" and other gatekeeping.