Line Of Duty’s Operation Trapdoor EXPLAINED: Drama revives series 4 kidnap and murder plot

Ted Hastings’ exclamation ‘mother of God!’ to the Jo Davidson revelation at the end of last night’s Line of Duty pretty much summed up how many viewers felt as the action-packed episode came to a close.

DNA samples taken from PS Farida Jatri’s home not only revealed DCI Davidson had been there, despite denying their personal relationship in the past, but also threw up a DNA match to someone else on the police database – a mystery blood relative of Davidson’s.

And there was more than one blast from the past for long-time fans of the crime drama, as AC-12 visited bent lawyer James ‘Jimmy’ Lakewell in prison to interview him after identifying him as the man who spoke to murdered journalist Gail Vella about police corruption.