A Comparative Study of Latent Blood Fingerprints Based on Solution Staining Method
For the latent blood fingerprint is one important material evidence at violent crime scenes,forensic science researchers and crime scene technicians make efforts to efficiently develop it.Three solutions(Amino black 10B,bright green SF and Coomassie bright blue G250)are prepared and used to develop the latent blood fingerprints on A4 copying paper,envelope paper,ceramics,glass,aluminum foil paper and other objects.Comparing the developing effect of the latent fingerprints on different objects at different remaining time by the above three solutions,according to the international evaluation standards of fingerprint quality,Amino black 10B and Bright green SF both score above 3 points,better than Coomassie bright blue G250.The latter performs poorly for the prints on copying paper,envelope paper and ceramics,and insensitive to the remaining time.The study provides technical support for investigation by identifying the optimal staining reagents for blood latent fingerprint on different objects.
solution staining methodlatent blood fingerprintsdeveloping solutionscomparative study
万方数据
维普
