Two things a bit wrong about this year's story, and this episode in particular:
1. We never see either of the suspect police officers doing any work. One just seems to hang out in his office (when he's there), and the other just seems to be applying for a promotion. Do they ever function as police officers?
One reason why this show is so good is the development of the characters. I'm afraid, in this year's episodes, it's not as well thought out as in the previous years. I realize this is difficult to do given their restraints of 6 episodes, but still, I think it's a serious flaw.
2. By the time of the 5th episode, the investigating officers should have been more aware for the potential of retaliation against them, and taken precautions. Another serious writing flaw. By the time they knew who they were dealing with, they should have been more careful.
All in all, not serious enough to make me rate the series down, but serious enough to make me think the writer should have taken another look at it. Overall, they've done an excellent job with the story, especially with the minor characters filling in details. Still, the above two flaws could have been fixed easily.
