Application Note: New Approach to Determine Time since Deposition of Blood at Crime Scenes
28 March 2013

This application notes describes a previously unidentified wavelength effect which shows a significant relationship to the lifetime of a blood stain has been discovered by the National Center for Forensic Science at the University of Central Florida.The degree of this wavelength effect allows for more accurate determination of the time since the blood was deposited and it is now possible to differentiate between stains that were deposited minutes, hours, days and months ago. Using the NanoPhotometer™ from Implen the scientists at the National Center for Forensic Science established that tiny bloodstains of only 1 µl could be used for this investigation.