Standing In Another Mans Grave, by Ian Rankin (one of his Rebus novels).
My previous exposure to Rebus was via the ITV series a while back and much as I like John Hannah, and later on Ken Stott as actors the TV shows never really gripped me. Not read any of the Rebus books previously, but got this last time I was in the charity shop and I have to say it's excellent. The book is far, far better than the TV programme ever was and I'll be on the look out for more.