I watched two shows with detective incompetence, and just realized that they were both from Homicide City, which is set in Philadelphia. Doesn't speak well of their police force! Here's what they did:
In Season 2, Episode 1 (Family Tragedy), a woman was killed. Their lead suspect had an alibi, that involved him and a buddy driving into Philly, going into a club that had a mosh pit, the pit got a bit extreme, and the suspect's face got scratched up. So the detective goes to the buddy to check out the alibi, and says, "Your friend says that you went to the club, and he got his face scratched up in the mosh pit. Is that true?" WTAF? Thank goodness the buddy was a stand-up guy, and said that the club was pretty dead that night and there wasn't even a mosh pit. But most buddies, especially of people that would commit murder and are probably not so reputable themselves, don't want to narc out their friends, and would have said basically, "Yep, that's what happened." What stunning incompetence!
In Season 2, Episode 2 (Pine Hill Massacre), a husband and wife (and one young daughter) are murdered in their home in the middle of the night. The detectives cannot find anything at all about this family that would merit that, and there was no robbery, so it really was just an execution. Then they find that a man who lives two doors down, was supposed to testify in an upcoming trial. and they have found a connection to a hit man regarding this man who was supposed to testify. Well you don't have to be Agatha Christie to think maybe the hit occurred on the wrong house! And lo and behold, that's exactly what happened, but it didn't occur to them to pursue that angle until a jailhouse informant told them about it.
And just a pet peeve, that I hear all the time on these shows...people pronounce "corroborate" more like a combination with "cooperate", so it comes out as "co-ob-er-ate". Aaarrggghhhh!
Thank you....rant over for the day (or at least for the afternoon)!