LOL, FEMA, who's that, they never show up in our neck of the woods!? Ok kidding, but we don't interact with them much except for disaster cases like earthquakes and floods. OES certs for the state as well as CARDA certs have always been good with them in the past.
HRD dogs (for those of you that don't know, it stands for human remains detection, in case anyone was wondering!) picking up something that "young" I get, that's just a new scent as far as they're concerned, but quite the opposite for a trailing dog.
So... under that theory, if we went that they were using their trailing techniques, but were cued in on a cadaver smell then she what was killed up by the school and transported at a later time?