Crime fiction is a label that covers a huge variety of literary production. Those of us who read so much of it usually have distinct preferences. I’m not so keen on those books, or tele­vision series, that get deeply into post-mortem dissections and dismemberments. I don’t like novels of serial killers or child abuse. I prefer private eyes to police procedure, but I enjoy Colin Dexter’s Morse and Peter Robinson’s Banks and Ann Cleeves’s Vera and Garry Disher’s Challis and Destry series. And Arthur Upfield’s Boney series, even if their police procedures are now deemed to be politically incorrect. But…