对一份文件最早制成时间的检验一直以来都是全世界文检界的难题之一。核实可疑文件的制成时间没有统一的方法,目前主要通过对纸张、墨迹、打字机、复印机、打印机、传真机、印刷品,以及笔迹和签名等因素的检验来确定一份文件的制成时间。文件检验人员需要充分利用他们手中的文件的内容及文件周边信息所反映出来的条件和材料,进而得出结论。 Inspection of the earliest date of a document has always been one of the challenges for the world’s literary community. There is no uniform way of verifying the timing of the creation of suspicious documents. At present, the preparation time of a document is mainly determined by inspection of paper, ink, typewriter, copier, printer, fax machine, print, handwriting and signature. Document inspectors need to make full use of the content of the documents in their hands and the information and documents surrounding the conditions and materials reflected, and then draw conclusions.