The argument made in the post I responded to basically said they had their theory, gathered or manufactured evidence to fit, and discarded or lost anything that contradicted. In the Simpson case, they were so sure they had it correct, they screwed up a lot of the evidence they needed to convict.
As much as people blame that one on the race card, some of the police behavior that came out in that trial precluded conviction and would have freed him on appeal. The most telling was the video of the bedroom showing nothing on the white carpeted floor. The video presented with a later timestamp where a bloody black sock was found where nothing appeared was the first clue that something was amiss.
OK. Thanks for the explanation.