Scientists have developed a new test that can reveal the amount of DNA people shed, a tool that could be used by forensic experts to nab criminals using genetic clues left at crime scenes. A single tap of a finger on items like door handles, glass or even shaking hands can help identify and link potential suspects to a crime.PTI
Source : https://www.thehindu.com/todays-paper/tp-life/new-dna-analysis-tool-can-help-nab-criminals/article25152186.ece
