在刑事案件中,常常遇到大量的重叠、残缺不全的疑难指纹。这些疑难指纹中的特征较难寻找,进行人工描绘时的难度很大,有时甚至会出现失误。为了解决这一难题,准确、地描绘出疑难指纹,固定其中的纹线特征,笔者在长期的工作实践中,摸索出一种简便方法。具体方法如下:1.将指纹制成所需倍率的照片; In criminal cases, they often encounter a large number of overlapping, incomplete fingerprints. The features in these difficult fingerprints are harder to find and are harder to paint artificially and sometimes even go wrong. In order to solve this problem, accurately and difficultly to depict difficult fingerprints, which fixed the characteristics of the line, the author in the long-term work practice, to explore a simple method. Specific methods are as follows: 1. The fingerprint made of the required magnification photos;