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Re: Toddler 'abducted' during holiday
Interesting (imho) point from the bottom of a BBC news item DNA
" Allan Scott, a lecturer at the University of Central Lancashire's School of Forensic and Investigative Sciences, said cross-contamination needed to be considered.
He said "secondary transfer" of Madeleine's DNA may have occurred and that DNA is "so sensitive" that if two people met in the street and shook hands and then one committed a crime, they could possibly leave the other person's DNA at the scene."
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