Dr Findlay took swabs from the back of stamps and from the gum used to seal envelopes, and possible bloodstains. He took his haul back to Brisbane, where – concentrating on swabs from the so-called “Openshaw letter”, the one believed most likely to be genuine – he extracted the DNA and then amplified the information to create a profile. The results were “inconclusive” and not forensically reliable, but he did construct a partial profile and based on this analysis, he said, “it’s possible the Ripper could be female”.
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