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Line of Duty: All the clues you may have missed in season 6 so far

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The evidence is racking up in series six (Picture: BBC)

*Warning: This article contains spoilers for Line of Duty*

Line of Duty fans have been doing their own detective work all the way through series six, and they’ve been busy spotting plenty of clues in that time.

The complex and meticulously detailed series has been full of hidden clues, as the investigation into the murder of Gail Vella (Andi Osho) steps up and the search for H continues.

The series has shocked us all with the revelation that Jo Davidson (Kelly McDonald) is related to familiar villain Tommy Hunter (Brian McCardie), confirming her deep links to the Organised Crime Group.

As AC-12 continues their work, viewers have been doing some snooping of their own, with fascinating results.

Here are all the clues viewers have spotted during series six.


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Could a typo hold the key to series six? (Picture: BBC)

There was a familiar detail in the latest episode on Sunday. It involved a tiny typo (the misspelling of ‘definitely’ as ‘definately’), which could have huge ramifications.

Jo logged into her laptop for a chat with H, communicating via text chat. During the conversation she was urged to ‘get rid of’ DI Kate Fleming (Vicky McClure).

‘As long as it’s my last job,’ Jo said, to which H replied: ‘Definately.’

The typo played a big part in series five, when H communicated with John Corbett (Stephen Graham) and his partner Lisa McQueen (Rochenda Sandall) and misspelled the word there too.

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Could Ted come under more scrutiny as a result of the misspelling? (Picture: BBC/World Productions/Steffan Hill)

Later, AC-12 managed to hack into the laptop and set up a fake call. When Ted Hastings (Adrian Dunbar) took over and began to type pretending to be H, he too misspelled ‘definitely’ as ‘definately’.

When later questioned, Ted claimed that he had studied the spelling habits of H in order to impersonate him. It did however lead some to believe that the clue proved Ted was the bent copper all along.

Either way, it’s a big clue. Adrian even went on Good Morning Britain to tell Susanna Reid as much.

Patricia Carmichael’s cryptic name

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Could Patricia have a bigger role to play? (Picture: BBC)

Detective Chief Superintendent Patricia Carmichael (Anna Maxwell Martin) has become one of those characters we love to hate, but could she have a deeper connection to the corruption behind the scenes?

Line of Duty fans believe they’ve finally worked out the identity of H after discovering what they believe to be a cryptic clue, and it’s all to do with her surname.

As one Twitter user wrote: ‘I think Carmichael is H. Jimmy Lakewell told Steve to look more into the race claim. Take away Raceclaim from Carmichael and what do you have left? H.’


f the theory is correct, then it means Patricia could be the one AC-12 have been searching for.

Steve flashing his lights four times

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Could Steve have sent a coded message? (Picture: BBC/World Productions)

When a series is as detailed as Line of Duty, and the writer is as meticulous as Jed Mercurio, few things are left to chance.

With that in mind, fans believe they spotted something in the first episode of series six.

During one scene, Steve Arnott (Martin Compston) meets with Kate to alert her that her new departments are being investigated by AC-12. After the pair text and agree a spot to meet covertly, he signals her by flashing his lights.

It was hardly the most secretive way of getting her attention, and Kate commented at the time words to that effect.

The stranger thing is, Steve flashed his lights four times – which fans believe could be morse code for ‘H’.

As viewers will remember, morse code was used to devastating effect in series three, when Dot Cotton signalled to Kate that there are four corrupt officers using four dots of morse code. Could it have deeper meaning?

The golf clubs


So far, there have been three corrupt ‘caddies’ working for the OCG unmasked across the six series of Line of Duty. They were Dot, ACC Derek Hilton and Gill Biggleloe.

Fans believed they’d spotted another (very literal) clue, when a set of golf clubs were seen behind the desk in Detective Superintendent Ian Buckles’ office.

Episode two also showed Ian had generic golfing pictures in his office too, just to really hammer things home.

While we know Ian is a shady character, but could this be a clear sign that he’s the final caddy? Or does he just really love a bit of pitch and putt?

The secret Hs spotted in the background 

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Line of Duty fans think Steve is missing a glaring clue behind him (Picture: BBC)

The identity of H might still be a mystery, but there have been actual Hs popping up all over in the latest series. As viewers spotted, the tiles spelled the letter out behind Steve in Steph Corbett (Amy De Bhrún)’s kitchen, which has led some to speculate that he could be the guilty man.

There was also a giant H in the tunnel behind Kate during one of her many covert meetings, this time with Ted in episode four.


Could they be clues hinting at the true identity of H? Or fun easter eggs thrown in for fun?

The mysterious letter

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The code was revealed in the trailer for series six (Picture: BBC)

One of the biggest clues emerged before the series even began, with the trailer leaving a trail of breadcrumbs for viewers to find.

Tucked away in the first clip was a magazine featuring journalist Gail. It also had a QR code on it, which if scanned sent viewers to a letter written from DCC Andrea Wise (Elizabeth Rider) to Chief Constable Philip Osborne (Owen Teale).

The letter contains a warning about Ted Hastings and his position at AC-12, stating: ‘He is oblivious to the politics of the situation which creates problems for me and problems for you.’

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The letter was discovered by fans after scanning the code (Picture: BBC)

We now know from the series that AC-12 is being majorly scaled back and Ted facing the prospect of enforced early retirement.

There’s a further hyperlink in the letter which leads to a painkiller prescription, which has to be a reference to the addition Steve is facing.

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The prescription might hint at trouble for Steve (Picture: BBC)

One of the subplots in the series so far has seen AC-12 subjected to drug tests, and Steve has so far refused to be seen.

Does this hint that there’ll be bigger consequences in the upcoming episodes?

Line of Duty continues on Sunday  at 9pm on BBC One.

Credit: Original article published here.

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