Not quite sure why any compensation was paid ?
Since the 2014 amendment to the Criminal Justice act 1988, if there's no reason why the police should have known at the time the victim was innocent, there's no compensation due.
from memory the act requires that a “new or newly discovered fact shows beyond reasonable doubt that there has been a miscarriage of justice”.
No new facts, so why the payout.
Don't downvote me. read this story - innocent men jailed for years and not a penny (probably a good job, as the wrongfully imprisoned have to refund the cost of their incarceration)
https://www.independent.co.uk/news/uk/crime/sam-hallam-victor-nealon-supreme-court-prison-compensation-miscarriage-justice-a8754661.html
Yes, this is the UK.