1 简要案情: 2003年2月,广州白云区法院送来一借款纠纷案件中涉及的“空白”传真纸,要求检验:显现“空白”传真纸上的字迹;是否另一当事人张某所写。 2 检验: 所送“欠条是一张热敏传真纸,字迹已经褪色,日光下一般不可见,通过侧光下观察,可模糊看到一些字的笔画痕迹,(见图1),运用宝捷拿文检仪,在蓝光灯下对其进行红外荧 Brief Case Study: In February 2003, the “blank” fax paper involved in a loan dispute case was sent by a court in Baiyun District of Guangzhou Municipality, asking for the test: to show the handwriting on the “blank” fax paper; and whether another party, Zhang, wrote it. 2 test: sent "IOU is a heat-sensitive fax paper, the handwriting has faded, the sun is generally not visible through the side light observation, you can see some of the word blur strokes traces, see Figure 1, the use of Bao Jie Take the instrument, under the blue light infrared fluorescence