I've seen the whole thing...like a few times LOL
I put it on sometimes when I'm bored, and just let it play while I work.
It's completely believable, imo, also being from a small, rural area where literally NOTHING interesting happens for LE, ...so they just spend time writing speeding tickets and harassing people.
At the very least, you could say there's an abundance of doubt based on what's covered in the film. And, a lot of hack bloggers/"journalists" have written about how they didn't cover this ....or that...., but I've seen what they claim wasn't included and it doesn't really seem convincing. Dude's got the biggest civil claim in history if he ever gets out, tho
It's incredibly similar to the "WM3" case those guys were released on a few years ago, too. Kinda slow getting started but after about 3 or 4 I was hooked lol