Line of Duty season finale, Martin Compston has addressed his character, DI Steve Arnott. Eager viewers are waiting to discover who the "bent copper is" as the BBC drama comes to an end.Martin, 36, has appeared in seasons one to six of the tense legal drama, which sees several police officers from Anti-Corruption Unit 12 [AC-12], lead investigations into bent officers within the force.Greenock-born Martin has found himself in the centre of investigations - having been shot while in the line of duty.Now, his character DI Steve Arnott, is investigating which officer is working alongside the Organised Crime Group [OCG] and is behind the pseudonym "H".Tonight’s finale will see the officer behind H be revealed, with some viewers already sharing.
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