Researchers at South Dakota School of Mines & Technology and the University of South Dakota in Vermillion have received a grant of more than $840,000 from the National Institute of Justice to research the development of a handheld device that will read fingerprints and potentially collect DNA. The device, which might look like a handheld bar code reader or be attached to a smartphone, uses nanoparticles and infrared light to detect latent fingerprints on surfaces where fingerprint extraction has traditionally been difficult.
“We’re designing the whole system,” says Bill Cross, Ph.D., a professor in the Department of Materials and Metallurgical Engineering at SD Mines. “This also could potentially connect via the internet to various fingerprint databases and produce real time results at the scene of the crime or back in the forensic lab.”
Traditional development of fingerprints has limitations due to several factors, such as the surface where fingerprints are found. Tools with neon colored handles, for example, don’t work well with some curren...
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