SPOILER: No, police don't end an investigation when someone confesses...especially when the confession is crap.
The writers don't seem to know much about anything to do with investigations or police work and got their knowledge 100% from tv.
It would be intelligent if Carter had skills like being able to tell when someone is acting or something...but acting is reading a script, not real experience.
They investigate to gather evidence because if they get to court and he recants, it's all over...he's free on double jeopardy. That's how dumb their ideas are. Cops want to get the right person, so especially in a killing they keep investigating.
Skills matter, not experience in deception (which is what acting is, when you think about it).
Yeah, I'm surprised the idea made it to a pilot, let alone a season. It's not just bad, it's really really dumb as well. But hey, if you want to think everyone in the show is as dumb as the writers, you might enjoy this one.
(It's really really bad.)
