Line of Duty fans are convinced that DCS Patricia Carmichael is the elusive 'H' following the latest episode of the BBC crime drama.
Episode five began with DI Kate Fleming and DCI Joanne Davidson being arrested after they went on the run after shooting PC Ryan Pilkington dead.
Carmichael (Anna Maxwell Martin) was adamant that she would be the one to lead the interrogation of Davidson alongside Superintendent Ted Hastings (Adrian Dunbar) and DI Steve Arnott (Martin Compston).
As the trio grilled Davidson and she continued to respond to questions with "no comment", many viewers watching at home were sure that Carmichael is dodgy.
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