Primary Studies on Judging the Sequence between Inkpad Seals and Ink Scripts by Microsurgical Spectrophotometric Method

Judging the sequence between inkpad seals and ink scripts is an important part of identification techniques of dating of documents,and it plays an important role in the field of document examination.With the development of the microscopic spectral technology,it has been applied in many areas of forensic science.In this paper,the microscopic spectral technology was used effectively to judge the sequence between inkpad seals and ink scripts.Experimental samples had been made with inkpad,laser printer,inkjet printer,fountain pen,ballpoint pen and roller and gel pen,and spectral analysis had been made with microsurgical spectrophotometer.The applicability and test conditions were put forward.Practice has proved that microscopic spectral technology is an effective and nondestructive method for identification the sequence between inkpad seals and ink scripts.