I think the Prosecutor is the one "clouding the water".
From the article:
Prosecutors have said that DNA from someone other than Bryant was found on the underwear the woman wore when she went to the hospital and was the result of mistakenly putting on soiled underwear that had DNA from an earlier sexual episode.
However, the DNA sample taken from her body could refute that line of thinking.
End article.
This girl has probably got some guys DNA on every piece of clothing she owns.
You highlighted the wrong word.
"could"