It would be a waste of time to have some of these people on this thread as detectives. They would simply sit there and take the word of a murderer or rapist and not try to shake his story.
” At which point did the police lie? “
When they told Zimmerman they had video of the incident. That was a lie.
No harm, no foul, a laugh and slap on the back when you find it out? Or do you charge him with obstruction? It's your decision. I bet it matters if you personally like the liar.
This is what is pissing off the civilians...the imbalance of power. You can lie like a rug to beat the band, but a little person cannot, not even about little things. It gets worse: Contrary to what you've been implying, a cop will lie on the stand, under oath, if he needs to in order to obtain a conviction. I've known people who have worked in courts daily as support personnel, and they've seen it so you cannot deny it happens.
Rule of thumb about Judges: A Judge who used to be a defender will lean to the prosecution because he's sure the defendant is lying. A former prosecutor will lean to the defense because he knows the cop is probably lying. And you wonder why you get a lot of skepticism?