SCOTLAND Yard has ignored an offer by a leading forensic scientist to re-test “inconclusive” DNA samples in the hope of finally solving what happened to Madeleine McCann, reports claim.
US forensics expert Dr Mark Perlin reckons new techniques could blow the case wide open – but says detectives snubbed his offer to analyse samples for free.
The evidence relates to swabs lifted from the McCann family’s holiday flat and hire car after sniffer dogs allegedly detected the “scent of death”.
Portuguese police sent samples to by analysed by the UK’s Forensic Science Service in Birmingham.
Senior scientist Dr John Lowe told cops some DNA components matched Maddie’s – but the samples were “too complex for meaningful interpretation”.
But Dr Perlin believes the methods used at the time are now out of date, reports Australia’s Nine News.
He claims his Pittsburgh lab Cybergenetics, which helped identified 9/11 victims, can routinely unlock the kind of samples the FSS struggled with.
The latest episode of Nine News’s Maddie podcast reveals detectives on Scotland Yard’s Operation Grange probe were told a year ago of Dr Perlin’s advanced techniques and his offer to re-test samples – but did not respond.
Further enquiries about Dr Perlin’s offer by Nine.com.au last week also went unanswered, the site claims.
Successful analysis of the DNA could potentially transform the world’s most famous missing person’s case by confirming or conclusively ruling out key lines of enquiry.
SWAB TEST ‘TOO COMPLEX’
Cops reached a dead end when the tests came back inconclusive 12 years ago.
One crucial swab was from the boot of a silver Renault Scenic that Kate and Gerry McCann leased 25 days after Madeleine vanished in Praia da Luz.
Dr Lowe told Portuguese police at the time: “Let’s look at the question that is being asked. “Is there DNA from Madeleine on the swab?
“It would be very easy to say ‘Yes’ simply because of the number of [DNA] components within the result that are also in her reference sample.”
Ultimately, Dr Lowe said the FSS could not answer that critical question because the lab was unable to separate a mix of DNA components from at least three people
Dr Perlin, who has worked with police forces around the world, claims his advanced computer software can interpret complex results like these in a way that was not possible in 2007.
He told Nine’s podcast investigation: “If a lab can produce informative data, even if it is complex and mixed, but they can’t interpret it then you can have tremendous injustice – of guilty people not being convicted, or innocent people staying in prison.
“What is needed is an objective and accurate interpretation that can scientifically resolve the DNA.”
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The Met Police said: “The investigation into the disappearance of Madeleine McCann remains ongoing. We are not providing a running commentary.”
Kate and Gerry McCann have repeatedly denied any involvement in their daughter’s disappearance and were cleared of wrongdoing.
Police believe Madeleine was snatched by a paedophile or a member of a trafficking gang.
Scotland Yard is waiting hear if the Home Office will grant a further £150,000 to continue its £12million search for another 12 months.
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News Photo Madeleine McCann cops ignore expert’s offer to re-test ‘inconclusive’ DNA samples in hope of finally finding Maddie
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