earticle

영어

1,2-IND, widely used as an amino acid reagent in detecting fingerprints on porous surfaces, shows outstanding performance among reagents developed after ninhydrin. This study examined the optimal optical conditions of 1,2-IND, a representative reagent that uses photoluminescence to detect latent fingerprLnts at crime scenes. The experiments found that the optimal conditions were a stimulus light of 505 nm and a 550 nm long pass fi lter. This was followed by a stimulus light of 505 nm and a 565 nm band pass filter, and a stimulus light of 530 nm and a 590 nm long pass fi lter. Investigation agencies are expected to benefit from using latent fingerprint detection with the optimal optical conditions of 1,2-IND provided in this study, in combination with camera shutter speed and aperture values.