suggestive means just that, it suggests, points to, indicates it doesnt mean "i have no clue and it could be bad breath or sausages"
cadaver scent means = from a dead body
Not necessarily from a
dead body mercury, - hair, teeth and fingernails can be parted from their live owners at times and would decompose. Also an alert could be to a scent which had been innocently transferred there from another source. I could also be to a scent emanating from underground.
Without corroborating evidence no-one can say which scenario it is.
Quote from THE SUN - (Yes I know - but it's in quotation marks - so a direct quote)
Martin Grime:-
: "Blood could be invisible to the naked eye, but Keela will detect it. It doesn't matter if it's hundreds of years old. "Eddie smells for the scent of a decomposing human body. He can detect any part of a human body that is decomposing - hair, bones, flesh, anything. "The smell of a decomposing body is very difficult to get rid of. It can easily be transferred to clothing and on to a person."
Unquote