Pen Pressure Characteristics in Questioned Document Examination
Ling Xu · Zhongguo sifa jianding · 2008
Up to now, the theory of questioned document examination has grown mature, but in practice, how to find valuable characteristics is still a challenging task for examiners and needs summarizing constantly. Pen pressure is a kind of characteristics frequently used in handwriting comparison; at the same time, it can also be applied in examination of addition alteration. In the paper, two cases involving the application of pen pressure characteristics are presented; the observation method of pen pressure is introduced and points of how to utilize the characteristics are discussed.