This may be way off the wall, but bear with me. How do we know the "tissue" suddenly referred to is body tissue and not bathroom tissue?
The sticky nail was found in the trash, probably with a bit of sticky "under" it. So, it manages to find a peice of bathroom tissue in the can which might have (no surprise) DNA from one of the occupants.
We have a bunch of stupid, talking heads who may have misinterpreted it.
It may be the nurse in me, but I would think a lab repoort would refer to a "specimen" unless it was a pretty large group of cells. Tissue is more than one cell--a layer or a group of cells.
I googled "Rape Forensic Exam" and the only reference I found to "tissue" was in reference to the victim. i.e. "On closer exam, the tissue had a rolled over appearanec, meaning the wound was in a state of healing and not recent."
References to forensics were scrapings, evidence, material, etc. Never tissue.
I have never read forensic rape report, so I may be wrong. But it is something to think about.
You remove one side of the protective sticky cover and place it on your real nail. You remove the other protective cover (which is what you now see on your real nail) and press the false nail unto what can best be described as a sticky little piece of tissue.
IF a nail falls off, there is NORMALLY sticky residue on the false nail and the "tissue like sticky" is on your real nail.....But I'll have to test that out to see how consistent that is.
These nails come off sooooooo easily. I always carried extras with me on special occasions....and apparently, this chick did, too.
So where was she before she got to the Duke's house? Why did she arrive with some nails already missing (per photos)....and a half hour late??