Line of Duty : Enquêtes internes - Series 4 Line of Duty : Enquêtes internes - 6 Épisodes
The fourth series sees AC-12 facing their most devious opponent yet! Under pressure from her superiors, DCI Roz Huntley charges a young man with a series of murders after months of fruitless investigation, but is he guilty? The Chief Forensic Investigator has doubts and turns to AC-12.