At the very.beginning they try to make Penny look like a rogue cop, when it came to the break-in, but from what they showed it was a righteous shooting. The 2nd cop that showed up at the scene criticizes Penny for not calling it in, was a lame attempt to make her look like a bad cop, even though another commentator (NijazBaBs) thought this was a good example of police corruption. It's not until later we see the real reason why she goes bad. What transpires later, turns out to be a good plot line for bullying and the ramifications that can come from it. This would have made a good episode of a police drama on a tv show.