A recent example of where the UK was, in my opinion, quite right in paying out to victims was to people who had been tortured by British colonial forces during the Mau Mau revolt in the 1950s:

http://www.bbc.co.uk/news/uk-22790037

I would also support compensation for anyone who was a victim of extraordinary rendition through the UK and criminal prosecution of anyone who aided this ghastly practice.