Catherine- she's in charge so the person in charge usually gets some heat, really
Al- how much of an autopsy did he really do?
They reported self defense and yes they didn't quite have all the evidence but still imagine how in court lawyers from then on could spin all this if Ray says he did it or whatever might happen in the premiere
To suggest that Doc Robbins cut corners on the autopsy to benefit his pal Ray is ludicrous. Doc is a consummate professional. Yeah, he got a little testy when Catherine asked him about the cuff marks, but did not speculate on how they got there. As far as he was concerned the cause of death was the fall. He did his job.
Catherine may be responsible to a point for the stuff that her team does. However, the key evidence here is the missing cuff, which was Brass's doing. Brass does not report to her and he is technically not on her team.
As far as the way the lawyers might spin it in court, why would they want to, unless they had some sort of vendetta against Ray? Same goes for the I.A. guy. Ray is gone either way, so I don't suppose it really matters that much.