The CHIS provides the address of a flat, in which an unidentifiable figure, assumed to be Turner, is seen.
It’s been nearly two years since Line of Duty last graced our screens – it’s fair to say the world has changed in the interim.
The convoy was travelling fast when it passed the tell-tale getaway van – how could Davidson have spotted such a quick, subtle clue?
The episode begins as the murder squad get a tip-off from a CHIS (Covert Human Intelligence Source), saying that a man using the alias “Ross Turner” had admitted killing Vella.