Great idea and I don't see it as entirely impossible, though possibly only with some kind of enhancement to the body. Being a writer myself, I see more possibilities with the idea than I've seen so far in the show, but then I've only watched four episodes so far. The Sniffer would be able to smell disease in humans like some dogs apparently can. Not only could he use his talent to solve crimes, he could work for doctors and quickly tell what a person has, such as diabetes, kidney disease or various cancers and metabolic imbalances. The show could go in that direction too and turn him into a super House. The guy who plays the main character is perfect, his expressions subtle and though the character is a bit of a snob or maybe it's just that he's too sensitive for normal social life, the actor makes him very likable, at least to me.
Review of Sniffer
