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Sydney, Oct. 7 – Australian scientists have developed a new test that can reveal the amount of disseminated DNA, a breakthrough that would help forensic pathologists to catch criminals.
The test, using a DNA staining dye, can help forensic pathologists determine the last person who came into contact with an object.
"We know that some people pass on more of their DNA because, when they touch something, their cells are left behind," said Adrian Linacre, professor and president of forensic DNA technology. at Flinders University in Australia.
"They call shedders but it's very difficult right now to see who is a shedder," he added.
The shedder status of a person of specific interest may be helpful in determining whether it is likely that a major contributor in a mixed DNA profile was the last person to come into contact with. an article and is therefore related to a crime.
The use of a staining dye of DNA allows to visualize the presence of cellular material and to allow its collection in real time on a swab head.
The results are published in Forensic Science International: Genetics.
Currently, forensic scientists are working blind because they can not see the exact location that contains DNA deposits and therefore must sample where they think the DNA could be stored. .
"What we have developed is a simple test that can determine if a person is a breaker in a few minutes and tells us who has the best chance of passing on DNA," Linacre said.
"The Shedders test also showed that men lost more than women and that thumbs left the most accurate traces," the researchers said.
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rt / mag / sed
Warning :- Outlook staff has not changed this story and it is automatically generated from news agency feeds.
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