Changing DNA

Is DNA Evidence Relevant?

4 Pages Posted: 12 Feb 2020

Kenneth W. Graham

University of California, Los Angeles (UCLA) – School of Law

Date Written: February 10, 2020


In admitting DNA sample taken at the crime scene in 2010 to compare it with a DNA sample taken from the defendant in 2020 courts assume that the defendant’s DNA has not changed in the prior ten years. This article questions that assumption using scientific findings published in the journals Scientific American and Science News.

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