@Olivier5,
Yes, for years now. I'm in the US, but I read some of what is going on elsewhere, and recently I read in The Guardian (I think it was) that the television series in Britain based on Camillieri's books has spawned a large amount of tourist traffic.
Tourist traffic not to see the places Montalbano frequented in Camillieri's books, nor any of Camillieri's own personal places, but the places featured in the television series - that were different than those in the books. It boggles the mind.
Have you read Gianrico Carofiglio? He writes good (to me) legal procedurals set in Apulia. In italian, naturally. I've read three translated to English, but I think there are four. I'm not sure how many he has written in italian.
Best to read those in the order written, for continuity.
Adds, I read italian but with a dictionary at hand; also, the books are easier to get here in english.