How many bodies did Eddie find in five years prior to Luz...as I said...no one disagrees with their ability to detect cadaver odour...it's what happens if there is none present which needs to be answerred..,and dogs being repeatedly called back when there's none present
So we have proof of concept and proof of reliability.
Your beef is with Martin Grime's technique.
He can't invent cadaverine and I'm highly dubious as to the concept of a man dedicating his life to training the infernal hounds, only to compromise his life's work and vocation on camera (with the eyes of the world on him) to somehow spur his dogs to alert. What for, financial gain, as you have alluded to in the past? Really? He was already preeminent in the field; he was, and still is, the go-to man.
It's weak, man, really weak.
His only mistake was in not cross-checking and getting another cadaver dog in - but then he'd never been impeached in such a manner up to that time.
Edit: and there's a really good reason why Eddie didn't alert a great deal in 5 years; it's the relative paucity of murder victims. Which is why he's so sought after in the good ole US&A.