“I’m only interested in one thing, and that’s bent coppers”
The six-part series, sees AC12 tackle their most devious opponent yet – DCI Roz Huntley (Newton), whose conduct is called into question while trying to prove herself to her superiors during a career-defining case, Operation Trapdoor.
Joining Newton in series 4 will be Jason Watkins (Taboo) and Lee Ingleby (The A Word), which has been promoted to BBC One from BBC Two and commissioned for a fifth series.
Line Of Duty Series 4 will air on BBC One in the coming months.
Watch the trailer below…