Remember the case well, we were living in Leeds at the time. The policeman "leading" the investigation lived out a happy retirement on his full pension with no sanction what so ever. I agree with you about the death penalty too. I have in the past asked one or two of the "I would carry out the execution" people if they would still do it if their own life was immediately forfeit if it turned out that they had hanged someone who was innocent and then the policy seems a little less straight forward.As a student in Leeds in the 1970s we used to go and attend trials (just like any other members of the public can...so we got no special access). One of the three I remember still was of Stefan Kiszko. SD members can use Google. On the evidence presented he was clearly guilty. Yet of course later on...
I have been, mostly, against the death penalty ever after the truth came out but what I have now always strongly felt for is this. If you lie under oath either as a normal witness or as an expert witness (or are selective in your testimony your give) then the full force of the law should fall upon you.
Poor Kiszko would never see any of those who gave false or misleading account brought to book. So the ever present thread of British justice is that if a witness effectively lies and a person is wrongly convicted that witness is never themselves in subsequent peril of their own liberty for their own misconduct.
David.