This sadly underrated documentary series glues me to the screen every time I catch it on TV. I love the way they introduce the cases and the way they show us the process of piecing together the big picture.
They explain what forensic tools they use and how, police officers talk about the effect these cases had on them. In the show's 30 minutes we can see how law enforcment officers crack a real criminal case (on which they worked for long years, sometimes decades.) If you like REAL crime solving this is a must-see for you!