McMorris Helen, Farrugia Kevin, Gentles Dennis
School of Science, Engineering & Technology, Division of Computing and Forensic Sciences, Abertay University, Dundee DD1 1HG, UK.
School of Science, Engineering & Technology, Division of Computing and Forensic Sciences, Abertay University, Dundee DD1 1HG, UK.
Sci Justice. 2015 Mar;55(2):90-6. doi: 10.1016/j.scijus.2014.12.004. Epub 2015 Jan 5.
There are numerous enhancement techniques (physical and chemical) which have been developed for the successful visualisation of latent fingermarks. Nonetheless, problems arise when latent fingermarks require enhancement on difficult surfaces such as human skin, food stuffs, fabric and animals. The ability to develop latent fingermarks on the surface of bird of prey feathers and that of their eggs was investigated. Red and green magnetic fluorescent powders proved to be most suitable on the surface of bird of prey feathers whereas black magnetic powder was the most suitable technique on the eggs. These powders produced the highest quality of visible ridge-detailed developments over a controlled period of time.
为了成功显现潜在指纹，已经开发出了许多增强技术（物理和化学的）。然而，当需要在诸如人类皮肤、食品、织物和动物等难以处理的表面上增强潜在指纹时，就会出现问题。研究了在猛禽羽毛及其卵的表面上显现潜在指纹的能力。事实证明，红色和绿色磁性荧光粉最适合用于猛禽羽毛表面，而黑色磁性粉是用于卵表面的最合适技术。在一段可控时间内，这些粉末产生了可见纹路细节最清晰的显现效果。
