Navarro Esperanza, Castelló Ana, López Jose L, Verdú Fernando
Facultad de Medicina, U.D. Medicina Legal, Av/Blasco Ibañez, no. 15, Valencia 46010, Spain.
Forensic Sci Int. 2006 Apr 20;158(1):9-13. doi: 10.1016/j.forsciint.2005.05.002. Epub 2005 Jun 13.
Latent prints are an important evidence for identification. Nowadays, the technical means, the implementation of image processing techniques and the use of database makes it possible to detect and get information from some prints that seem to be useless at first sight. On the other hand, the possibility of using the print as a DNA source has to be considered, so as to double its identifying value. Human skin is a particularly difficult surface for developing this kind of evidences. Although different methods for locating and developing latent fingerprints on the skin have been already described, it has not been found any method, at the revised bibliography, to obtain and develop invisible lipmarks, that is, lipmarks from protective lipstick, or permanent or long-lasting lipstick. The aim of the work that follows is to determine the effectiveness of several reagents for developing invisible lipmarks on the corpses' skin. Preliminary results show that, under the described experimental conditions, the reagents used, Sudan III, Oil Red O and Sudan Black, are effective for obtaining recent latent lip prints on corpse's skin.
潜在指纹是身份识别的重要证据。如今，技术手段、图像处理技术的应用以及数据库的使用使得从一些乍一看似乎无用的指纹中检测并获取信息成为可能。另一方面，必须考虑将指纹用作DNA来源的可能性，以便使其识别价值翻倍。人体皮肤是提取这类证据特别困难的表面。尽管已经描述了在皮肤上定位和显现潜在指纹的不同方法，但在查阅的文献中尚未发现任何获取和显现隐形唇印的方法，即来自防护性口红、永久性或长效口红的唇印。接下来这项工作的目的是确定几种试剂在尸体皮肤上显现隐形唇印的有效性。初步结果表明，在所描述的实验条件下，所使用的试剂苏丹III、油红O和苏丹黑对于在尸体皮肤上获取近期潜在唇印是有效的。
