I am sure someone could somehow inquire to the machine manufacturer for information about the machine ID associated with one of their machines...and then put 2 and 2 together.I was thinking the same thing.
A cromatography knowlegeable guy like mercury coulda have spotted a unique machine ID in Analyzer reports.
Google it or trace it somehow and then snitch on LE or the University.
I never said he did it.
Just theoretically possible.