Sorry for the resurrection of this topic, but GOD DAMN IT! I have installed L.A. Noire today and, although it is an excellent game, it is one of the most difficult I have played! I am going through interrogation by detecting contradictions between testimony and evidence (thank you, Ace Attorney), but when something that is not covered by the evidence comes up, I am just accusing or believing witnesses at random. I expected the game to have some sort of tutorial on how to detect liars.
Anyway, I played up to the last mission as a police officer trying to get a perfect score (finding all evidence and getting every correct answer). However, when I got to the first detective mission, things got very complicated and I gave up on restarting a nearly completed mission simply because I missed the last few answers. I am managing to get 4 stars due to my behavior, clues found and side missions, but my ratio of correct answers is just a little over 50%. This is easily the most frustrating game I have played, because sometimes I have no idea of what was my mistake.
Still, it is a very good game. I would recommend it to everyone.
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DISCLAIMER: It should be noted that, while I strongly suspect I have Asperger's syndrome, I am not diagnosed. Nevertheless, my score on RAADS-R is 186, which makes me a pretty RAAD guy.
Sorry for this terrible joke, by the way.