Ian Rankin. Black & Blue. Orion, 1997.
I still love Rebus, and this is an earlier title I somehow missed. Bible John and Johnny Bible, in Edinburgh, Glasgow, Aberdeen, Shetlands, Peterhead, and on the North Sea oil rigs. This is the cover of the secondhand paperback I found, but this is not the actor whose face I see when I read the novels.
And Rebus and Siobhan: