Either you are misunderstanding his statement or he misspoke. From my understanding of how that test is conducted, there would be no way they could isolate the results of a commingled sample.
Bottom line is that nobody can say with 100% certainty that the stain was saliva right? That's all I need the jury to hear.
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Even if it is, andreww, Henry Lee found saliva DNA in packages that weren't even opened yet.