Wednesday, May 19, 2021 Line of Duty fans are still 'definately' not sure that everything has been tied up in the series finale after it concluded that after a decade of investigating, H turned out to be the less-than-leg buckling Ian Buckells. Sofa detective and die-hard fan 'TheHeart_TheLungs' posted theories about the psychologist on Reddit. It read: "Here's a theory that could come into play in series 7. The police psychologist that Steve was sent to by Hastings, and we subsequently saw Kate talking to, refers vulnerable officers to the OCG for blackmail. "I imagine that Ted himself saw him after his divorce and money problems which led to him being blackmailed by the OCG.