Sunday night’s episode was no exception, with viewers picking up on what appeared to be a reference to one of the show’s biggest ongoing storylines hidden in some graffiti.
In one scene, Kate Fleming and Ted Hastings returned to a heavily-graffitied underpass to have one of their shady private meetings, and fans (including The Chase favourite Jenny Ryan) couldn’t help but notice a stonking big “H” written on the wall in spray paint.
Others also pointed out that the word next to it appeared to spell out “not”, with some suggesting it could be a clue, while others wrote it off as a red herring – but a fun one all the same.
Mother of God! If you read that graffiti from Kate’s shoulder onwards it only bloody well says ‘Not H’ #LineofDuty and their Easter Eggs constantly amazes me. Surreal details 🐣 https://t.co/mZ1S0b2FyO— Annemarie Dray (@Anna__Dray) April 13, 2021
Was there a clue in the graffiti tunnel? When Kate was stood facing Ted, there was a massive H on the wall next to her?! 😉— Pariah. 🌸 (@MalBulmer) April 12, 2021
Does it say 'H Not'? Messing with our minds! 😁— Lindsay🌹💯+☝️✌️ (@LindsayWillis1) April 12, 2021
...and it says NO straight after....I am going to have to watch this again, I appear to have missed so much— Erica Dean 🍽🧚 (@lunchtimelady) April 12, 2021
Good spot! Are they toying with us or are these real clues!— Sue (@Sue210260) April 11, 2021
I do think that the production team have had a bit of fun slipping in the letter H to the background during this series. Cheeky buggers. #LineOfDuty— Jenny Ryan (@jenlion) April 11, 2021
The mystery about the identity of “H” was somewhat resolved at the end of series five, when it was revealed that “H” was actually a code name referring to one or a group of senior ranking corrupt police officers within the Central Police.
It was also revealed that there are four people pertaining to be “H”, the last of which remains unknown.
Last week, fans noticed another hidden “H” in the tiles in the background of John Corbett’s widow Steph’s kitchen.
Admitting that sometimes details like this were deliberately used as misdirection, Line Of Duty creator Jed Mercurio previously told Radio Times: “If you have created a set of mysteries, you also have to understand the significance of misdirection and red herrings.”
“We do use misdirection at times,” he added. “And it’s deliberate.”
Line Of Duty continues at 9pm on Sunday night.