Line of Duty Season 6 confirmed to start in 2020

Will we find out who H is?

Line of Duty
Author: Alex RossPublished 3rd Jan 2020
Last updated 19th May 2022

Following THAT nail-biting cliffhanger at the end of Line of Duty Season 5, writer Jed Mercurio left fans ecstatic when he confirmed another series, and now we know just when we can expect it to arrive.

Despite reports suggesting fans would be made to wait two years to find out who the infamous 'H' is, the BBC have now confirmed the hugely-anticipated new series will be back in 2020!

Line of Duty

In an action-packed trailer for what's coming up on the channel this year, fans are given a glimpse at the new series of Line of Duty, in a clip showing DI Kate Fleming, played by actress Vicky McClure.

The new one-minute long trailer also confirms other exciting shows for 2020, including the return of Our Girl with Michelle Keegan, Little Mix's new show The Search, Season 3 of Killing Eve, and of course, the 2020 Olympic Games.

Watch the full trailer below:

Back in November it was revealed that Trainspotting actress Kelly MacDonald, who starred in hit BBC drama The Victim back in 2019, has been cast to play Detective Chief Inspector Joanne Davidson in the new series of Line of Duty.

As DCI Davidson is drafted in to solve a murder, her methods begin to raise suspicions over at AC-12, with Detective Inspector Kate Fleming (Vicky McClure), Detective Sergeant Steve Arnott (Martin Compston), and Superintendent Ted Hastings (Adrian Dunbar) trying to uncover her wrongdoing.

Line of Duty creator Jed Mercurio said, ‘We’re honoured that Kelly Macdonald will join Martin, Vicky and Adrian in series six of Line of Duty. DCI Joanne Davidson will prove the most enigmatic adversary AC-12 have ever faced."

Check out what all of the Line of Duty acronyms mean:

OCG - Organised Crime Group: Serious crime planned, coordinated and conducted by people working together on a continuing basis, mostly acting in different roles depending on their skills and expertise.

PACE - Police and Criminal Evidence Act: Established in 1984, a code of practice that regulates police powers and protects public rights.

REG 15 - Regulation 15 notice: A notice that advises an officer that a complaint has been made or a conduct matter has come to light that warrants investigation by professional standards department.

RIPA - Regulation of Investigatory Powers Act 2000: An act of Parliament of the United Kingdom, which regulates the powers of the public bodies to carry out surveillance and investigation, and covers the interception of communications.

RTC - Road Traffic Collision

ANPR - Automatic Number Plate Recognition: Technology is used to detect, deter and disrupt criminality at a local, force, regional and national level.

AC-12 - Anti-Corruption Unit 12: A dedicated unit that holds responsibility for investigating corruption within the police force.

CHIS - Covert Human Intelligence Source: A person who establishes or maintains a personal or other relationship with another person for the covert purpose.

AFO - Authorised Firearms Officer: A police office, who has been selected, trained, accredited and authorised by their chief officer to carry a firearm operationally.

ARVs - Armed Response Vehicles: ARVs are crewed by Authorised Firearms Officers to respond to incidents believed to involve firearms or other high-risk situations.

DIR - Digital Interview Recording: Digital device used to record police interviews.

IOPC - Independent Office for Police Conduct: A non-departmental public body in England and Wales which, since 8 January 2018, is responsible for overseeing the system for handling complaints made against forces in England and Wales.

FI - Forensic Investigator: The FI gathers and preserves physical evidence at a crime scene to take to a lab where they examine what they or other law enforcement personal have found.

I.P. Address - Internet Protocol Address: A numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

SFC - Strategic Firearms Commander: The SFC has overall strategic command of firearms operations, with responsibility and accountability for directions given.

UCO - Undercover Operative: A method use by law enforcement and intelligence agencies. They wear civilian clothes that fit in to avoid detection.


TFC - Tactical Firearms Officer: A TFC provides guidance on the appropriate use in respect of different tactical options involving the deployment of AFOs.

VPN - Virtual Private Network: The extension of a private network that includes links across shared or public networks, such as the Internet.

If you've followed Line of Duty since it first hit our TV screens back in June 2012, you'll be on the edge of your seat to discover who the infamous 'H' is, with Superintendent Hastings also having a secret. If you've not get given the series a try, you can watch all five series on Netflix.

Although it's not clear which month Line of Duty Season 6 will land, at least we now know it's this year! 🙌

Find out everything you need to know about Line of Duty Season 6 right here.

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