One of the better LoD "Coda" sequences, IMO.
Loved the business about the "missing" £50k - implying that Hastings is both corrupt and honourable at the same time!
And as for Pilkington: I missed it in the original episode, but twigged during tonight's "Previously..." montage that the exams he passed must have been Police Entry exams! Shades of "Infernal Affairs!", there!