Polymerase Chain Reaction (PCR) Analysis PCR analysis is a technique that allows technicians to create millions of precise DNA replications from a single sample of DNA. In fact, DNA amplification alongside PCR can let forensic scientists perform DNA analysis on samples that are as tiny as only a couple of skin cells. In contrast to some other DNA analysis techniques, PCR analysis has the advantage of analysing minuscule sample sizes, even if they are degraded although they must not be contaminated with DNA from other sources during the collection, storage and transport of the sample.
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Forensic News Blog - 3 views
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In 2012, readers searching for forensic science content now have many more ways to find
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relevant material. Organized blogs devoted to forensic science have appeared that post both links and original content. Organizations have twitter accounts and Facebook pages that make reaching readers much easier than in RSS days.
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Investigators have found new DNA evidence in the murder of Peggy Hettrick, a case that was considered closed until genetic evidence freed a man who spent 10 years in prison, according to Colorado Attorney General John Suthers.The "touch DNA" tests weren't available in the late 1990s. Timothy Masters was convicted of murder in Hettrick's death in 1999, but his conviction was overturned in 2008 after defense lawyers used advanced DNA testing to uncover evidence suggesting a different suspect.The new evidence was taken from Hettrick's clothing. "We have done 'touch DNA,' and I think it has moved the ball forward. We will know more in the future," Suthers said. He wouldn't say whose DNA was found or identify the clothing on which it was found.Masters has not been exonerated in the case and remains a suspect."While we are not in a position to exonerate Tim at this time, I emphasize that he is presumed innocent and is no more a suspect than a variety of other people," Suthers said.
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BBC News - DNA crime-fighting in UK 'lagging behind', experts say - 0 views
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Cross-border co-operation on terrorism and crime will be compromised unless the UK updates the technology it uses for DNA profiling, experts have warned.
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Using EU recommended markers Not using recommended markers Dat
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Experts also say that the "chemistry" that underlies DNA testing kits used by UK forensic science labs is now more than a decade old and that newer, more sensitive systems can obtain results from even low quality samples - improving success rates. Some argue that such information can potentially make or break a case.
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Forensic DNA - 1 views
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