Determination of the Sequence of Strokes Made from the Same Color and Type of the Ink

Investigation of the sequence of strokes is an integral part in Forensic Questioned Document Examination. With the modernization, forgers are also using modern methods for forging the documents and hence making the examination process more tedious. The present study focuses on investigating the sequence of two intersected lines made from same type and color of the ink using Confocal microscope and Docucenter Nirvis. Oil-based and liquid based inks in the color black was used for making the sample. All the intersections made were homogenous in nature.The samples were first analysed under Docucenter Nirvis and then finally examined under Confocal microscope for more accuracy. It was found that the Confocal microscope covered all the area in which the Docucenter Nirvis lacked in the analysis and gave more confident result. The three dimensional feature of Confocal microscope aided the study and the authors was able to find the correct sequence of the lines placed on the writing surface.