The Line Of Duty questions we still want answered including is Ted Hastings going to jail
It was a finale that sparked a frenzy on social media. But although the identity of the 'fourth man' was revealed, Line of Duty fans still need more answers.The hunt for bent coppers assisting OCG (Organised Crime Gangs) began with the first Line of Duty series in 2012, and over five series the AC-12 team have fingered corrupt officer Matthew "Dot" Cottan in series three, police chief Derek Hilton and the force's legal counsel Gill Biggeloe.