I suspect that mystery author Elizabeth George is a dog lover. My evidence? The passage below, from George's novel Careless in Red, in which a character is greeted by her three black labs:
"As she suspected would be the case, Dogs One, Two, and Three were delighted to see her, and they expressed their enthusiasm with a series of leaps and yelps as they dashed about the back garden seeking something with which they might present her: a plastic garden troll from One, a half-masticated rawhide bone from Two, the tooth-marked handle of a trowel from Three. Bea accepted these offerings with suitable oohs and aahs, unearthed the dogs' leads from within a pile of boots, gloves, anoraks, and pullovers on a stool just inside the kitchen door, and hooked up the Labradors without further ado. Rather than take them on walkies, however, she led them to the Land Rover. She said, "In you go," as she opened the rear of it and when they cooperatively leapt inside, she knew they thought it was -- oh frabjous day! -- countryside time."
Wouldn't I make a good detective?