British justice, Ian, is littered with cases in which convictions were upheld, even on appeal, in respect of people who were innocent, and whose innocence was eventually established - sometimes after the convicted had died from either natural causes or judicial execution. One of the most welcome developments in my lifetime is that the legal profession has been forced to recognise the reality that our courts - indeed all courts - are fallible.

To John MacKenzie's point, I would add that the shopkeeper said it was raining on the day when Megrahi called into his shop. (It was claimed that he brought an umbrella.) It was agreed by the prosecution that there was only one day when Megrahi could have called into the shop. On that day it did not rain. And much else was wrong with his statement too. (Ae the link I put in my second post above.) But I'm sure US authorities considered they got full value from the millions of dollars they transferred into that witness's bank account.

Unfortunately the Jim Swire article recommended by MthM is behind the Murdoch paywall, but it really is compelling reading for anyone who can access it - in particular the evidence pointing to an Iranian-funded Syrian faction.