They cannot prove where the fibers came from, what is the source. Dusek said in his opening statement that he was going to show you the source of that orange fiber in Danielle's necklace. But under microphotospectrophotometry, the similar orange fibers were excluded. All the other fibers, didn't use microphotospectrophotometry, because as Jennifer Shen says, "I didn't have time."
They cannot show a source for those fibers.
If Dusek tells you Layla's hair was anywhere in DAW environment, that indicates Locarde principle of transfer. Between Wednesday and Thursday. Double standard--want to use transfer on some instances, but exclude the transfer theory when it suits prosecution.
Denise, Barbara, Brenda, could have transferred fibers while dancing.