Saturday, 30 January 2010

Israeli Scientists Show DNA Evidence Can be Fabricated

Scientists from the Tel Aviv, Israel-based company Nucleix have demonstrated that it is possible to create fake DNA samples and plant them as evidence at a crime scene, in a paper published in the journal Forensic Science: International Genetics.

"You can just engineer a crime scene," said lead researcher and Nucleix co-founder Dan Frumkin. "Any biology undergraduate could perform this."

In addition to having developed a method of fabricating DNA evidence, Nucleix has also developed a method of detecting faked DNA that it plans to sell to forensics labs.

The scientists have developed two different ways to manufacture DNA samples in order to fool law enforcement. The first involves using DNA profiles from law enforcement databases, which record the code at 13 different spots on a person's genome. Using a pooled library of DNA samples from a number of different people, the geneticists were able to physically construct DNA that was identical to a suspect's DNA at those 13 points. It would take only 425 different DNA snippets to be able to construct every possible permutation, the researchers said.

The second method involved collecting actual DNA from the person whose genetic material was to be faked, such as by collecting a strand of their hair or saliva from a cup they had used.

In both cases, the DNA was then reproduced in large quantities using a technique called whole genome amplification. This DNA was inserted into red blood cells, which were then passed off as a real DNA sample.
http://www.naturalnews.com/028052_DNA_evidence.html

[Posted at the SpookyWeather blog, January 30th, 2010.]

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