涂抹掩盖字迹显现方法综述

A Review of the Methods of Smearing and Obliterating Handwriting

涂抹掩盖文件字迹是犯罪嫌疑人常用的伪造、损坏证据的方法之一,被涂抹部分通常为案件的关键部分,因此具有很高的鉴定价值,往往是侦破案件的关键所在。由于涂抹方式、色料种类较多,形成掩盖字迹条件复杂,因此,涂抹掩盖字迹的显现常成为文件检验鉴定人员所面临的难题。文章对国内涂抹掩盖字迹显现方法的文献进行提炼总结,在阐述方法原理、实验操作的基础上,对每种方法的优势和不足进行述评,期望能对文件检验鉴定工作人员提供借鉴和参考。

Smearing and obliteraing handwritings of documents is one of the common methods used by criminal suspects to falsify and damage evidence. The obliterated part,which is usually of great verification value,is usually the key to crack a case. The different ways of smearing and a variety of coloring material make a complicated condition of coverd handwriting. So the reveal of obliterated handwriting often becomes a difficult problem for the document examiners. This paper summarizes the domestic literature review on the methods of revealing obliterated handwriting,and then,on the basis of thoery and practice,it gives a brief comment on the advantages and disadvantages of each method,hoping to provide experience for fellow document examiners.