DNA evidence has always been considered the end-all-be-all of proof in criminal cases. It was thought that this evidence was infallible and impossible to be tampered with. Well according to Israeli scientists, that is just not true.
Scientists in Israel have demonstrated that it is possible to fabricate DNA evidence. The scientists were able to do this by fabricating blood and saliva samples containing DNA from a person other than the donor. They also demonstrated they could create a sample of DNA to match a DNA profile without obtaining the tissue of the individual from the profile.
“You can just engineer a crime scene,” said Dan Frumkin, lead author of the paper, which has been published online by the journal Forensic Science International: Genetics. “Any biology undergraduate could perform this.”
The scientists fabricated DNA samples in two ways, with one needing the services of a small real DNA sample, which was from a strand of hair. This tiny sample was then made much larger using a technique called whole genome amplification. They then combined the DNA from this strand, which came from a man, with blood from a women that had been removed of its DNA. When this sample was analyzed, it only came back positive as a normal sample of a man’s blood.Read More →