ANALYSIS OF GRAPHIC GESTURES OF SIGNATURES MADE THROUGH MACHINERY FORGED BY A C.N.C.PRINT X-Y ARDUINO (ENTRE RÍOS, ARGENTINA)

Tabia Carina Elena y Pérez Zulema Edith

Abstract

This article will show the experimental results obtained by comparing falsified signatures mechanized by means of a CNC printer, with their original signatures made by a natural person, which after being subjected to a digitization process, were reproduced by this mechanical device. After the analysis by the Grafocritical method, the most relevant characteristics were obtained: stiffness in the layout, or uniform and continuous outline when the original signatures present alternate outline between master and profile; arrests, retakes and presence of clusters or chips in the path of reproduction; speed difference, observing oscillations and vibrations in the execution, being more evident in the upward strokes of the profile; difference of form, in beginnings and endings steely or barbed, where in their reproduction they are of the rounded type. It is concluded that the present study can provide, to the expert analysis, an effective tool for the recognition of this type of falsifications.