Improving Analysis of “Trace DNA” Evidence
Researchers try a new way to maximize DNA in low yield situations and reduce costs. Sometimes, forensic labs can find ample DNA in the evidence collected at a crime scene. Other times, investigators are not as fortunate. Evidence samples with low amounts of DNA may not yield a profile which investigators can use to match or exclude potential suspects. Researchers have a potential solution: direct Polymerase Chain Reaction (PCR). This DNA amplification method allows scientists to add a swab or…
