Feldman M A, Meloan C E, Lambert J L
J Forensic Sci. 1982 Oct;27(4):806-11.
The developed method for detecting fingerprints on live human skin involves first fuming the suspected area with iodine, and then placing a 35-mm clear plastic strip with a leuco crystal violet coating and a trace of water over the fumed area. A few seconds later a dark purple reproduction of the ridge pattern develops. It is a stable direct positive and can be mounted in a 35-mm slide mount for direct viewing. Readable prints may be obtained up to 1 h after impression on live human skin and two or three lifts may be obtained from the same print.
所开发的用于检测活人皮肤上指纹的方法，首先是用碘对疑似区域进行熏蒸，然后将一条带有无色结晶紫涂层和微量水的35毫米透明塑料条放置在熏蒸过的区域上。几秒钟后，会形成脊纹图案的深紫色复制品。这是一种稳定的直接正像，可以装在35毫米的幻灯片夹中直接观看。在活人皮肤上留下印记后长达1小时都可以获得可读指纹，并且同一个指纹可以提取两到三次。
