A&E Investigates: The First 48 takes viewers behind the scenes of real-life investigations as it follows homicide detectives in the critical first 48 hours of murder investigations, giving viewers unprecedented access to crime scenes, interrogations and forensic processing. The First 48 returns to A&E Thursday at 8/7c with a 2-hour season premiere. | Sparklight

Check out this behind-the-scenes moment with Detective Matt Frazier at Tulsa Homicide headquarters. What did you think of last night's episodes of The First 48? | The First 48