Answered recently:
geofbob says 'Suret�' to which
Quizmonster adds"Le Quai des Orfevres is the name of the actual building, in case that is what you want to know. The problem with the words 'Scotland Yard' is that they can mean either the building or the service that operates within it!
Click
http://www.japantoday.com/e/?content=news&id=20876
4
and scroll about 2/3 of the way down the page to the paragraph that opens: "Belgian crime writer..." for the connection between Simenon, Maigret and Le Quai des Orfevres."