The Physics Section provides research and development in forensic sciences using applied physics. The research is conducted on wide range of topics such as image processing and analysis of crime scene images, latent fingerprint or oil detection using laser, radiation measurements for radiological or nuclear threat, and forensic analysis of malfunctioned electronic controllers. In addition, we provide scientific examination and analysis to law enforcement community.
We developed systems which can visualize the fluorescence of samples using various lasers from ultraviolet to infrared. Laser spectroscopy has the advantage of examining samples, nondestructively. Furthermore, we have studied detection methods for fingerprints by time-resolved imaging spectroscopy, which has the advantage of effective detection of fingerprints. Also, we have been studying on a fingerprints imaging method by the two-photon excitacion with a femto-second laser system.
The following forensic image analysis methods are examples of our research & development scopes: Measurement of physical quantities such as a suspect's height and a vehicle's running speed by means of the photogrammetry, Source camera identification, Image enhancement / restoration, Identification of objects and individuals from images, Detection of traces by image tampering, etc.