6 Season
36 Episode
Line of Duty - Season 3 Episode 6
If you think catching criminals is tough, try catching police officers.
DS Steve Arnott is arrested on suspicion of murder but continues to protest his innocence.
- Year: 2021
- Country: United Kingdom
- Genre: Crime, Drama, Mystery
- Studio: BBC One, BBC Two
- Keyword: police, dirty cop, internal affairs, police corruption, procedural, anti-corruption, police procedural
- Director: Jed Mercurio
- Cast: Martin Compston, Vicky McClure, Adrian Dunbar, Gregory Piper, Nigel Boyle, Kelly Macdonald