Fujikawa has also discovered that insect feces fluoresce under a light source with a wavelength of 465 nanometers and an orange filter, whereas blood will not. This novel insight could be used by crime-scene investigators to distinguish blood spatter from bug activity. She published her research in journals that are used by law enforcement, such as the Journal of Forensic Sciences (see here and here), specifically so that they could easily access and utilize this information.
With a grant from the National Institute of Justice, Fujikawa is now focusing on how blowflies develop under different temperature conditions. This is a key piece of information needed to narrow down PMI since time of death is a calculation based on the age of maggots growing and grazing on a carcass. Fujikawa's research is the first comprehensive study of its kind, Higley says, adding, "I wouldn't be surprised if 50 to 60 years from now, [people] are still referring to her work."