However, a fake sample can also be created just using DNA profiles stored in police databases. These are a series of numbers and letters that correspond to variations at 13 spots of a person's genome.
The scientists built up a library of more than 400 DNA snippets that represented common variants at each spot.
'This library contains all of the different variants found in the human population and you can create the desired profile,' Dr Frumkin said.
Dr Frumkin is founder of the company Nucleix, which has developed a new test to tell whether DNA samples are real or fake.
Source-Medindia
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