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Who is H in Line of Duty? From Philip Osborne to Kate Fleming - we rate the most popular theories ahead of the season 6 finale | NationalWorld
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Is Philip Osborne bent on Line of Duty? How season 6 finale increased suspicion around the chief constable
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Line of Duty fans desperate for Martin Compston's Steve Arnott to arrest 'H' suspect Osborne as series one payback
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Line Of Duty season 6: Fans spot several connections to series one's CI Philip Osborne | Daily Mail Online
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Line of Duty fans think Chief Constable Philip Osborne is in balaclava in explosive finale trailer - OK! Magazine
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