I thought this series was really interesting. The combination of the real detectives talking about their experiences coupled with the drama re-enactment worked really well. It was good to see some good officers who were still passionately involved in their work, and showing real emotion on screen. They dealt with one really well known case that was actually quite chilling. It also gave more insight into how actual investigations worked, and how officers really do follow the rules (officers removed from cases when it gets personal, having to have genuine proof for warrants etc). You also got to see how real things just happen outside of work, and officers have to work through them like everyone else.