On Gotham last season, Barbara seemed more far gone than ever. She allied herself with Ra’s al Ghul, became the leader of the League of Shadows and began a gender war against all men. This year, she’s noticeably calmed down.
Gotham City's Police Department doesn't exactly have a reputation for excellence, but that doesn't mean Batman's home is without good cops. It’s just that in a city like Gotham, to uphold the law, you sometimes have to be willing to break it.