AdvertisementSolving Crimes With Pollen, One Grain Of Evidence At A TimeApril 25, 2015NPR StafffacebookEmailDallas Mildenhall, New Zealand's forensic pollen expert, peers at samples through a microscope. (Courtesy of David Wolman)
Dallas Mildenhall, New Zealand's forensic pollen expert, peers at samples through a microscope. (Courtesy of David Wolman)