And it's simply not possible there was a tertiary transfer of Raff's DNA from the doorknob, as (a) after 42 days, the doorknob DNA would have dried and deteriorated by overriding DNA and handsweat and (b) there is no evidence Napoleoni's latex glove ever came into contact with the door handle for such a contamination to happen. Prof David Balding of UCL confirms it is an irrefutable, exceptionally strong imprint of Raff's DNA on the bra clasp.
No two ways about it. Not even that wily old fraud Gill, paid defence shill, can convincingly twist it.
ETA And anyway, the video shows, and Napoleoni affirms, she took great care not to touch the actual clasp.