EVU XXVII 2018 – 13 Identification of the make, model and year of production of the car by comparing the IR spectra of color layers to the IR spectra from the available EUCAP data bases using the KIA software
Identification of the make, model and year of
production of the car by comparing the IR spectra
of color layers to the IR spectra from the available
EUCAP data bases using the KIA software
Veronika Marinović
Forensic Science Centre ,Ivan Vučetić“, Zagreb, Croatia
Abstract
The characteristic of the paint of metal and plastic parts of cars are several cross-section layers which differ according to their colour and chemical composition. The distribution, colour and chemical composition of the car paint layers di!er depending not only on the car manufacturer, but also depending on the make, model and year of production of the car of the same manufacturer. This paper
presents how the make, model and year of production can be identified by comparing the IR spectra of each layer of an unknown paint sample to the currently available data of di!erent car manufacturers. An unknown paint sample was found on clothes of a pedestrian who suffered an injury in a tra#c accident including an unknown car which left the crime scene. The physical characteristics of the unknown paint sample were examined under microscope to identify the distribution, number and colour of the cross-section layers. The qualitative chemical composition of each paint layer was examined by the IR- spectroscopy method and the identified IR spectra were compared to the IR spectra of the car paint from the available ENFSI EUCAP/FRCAP bases using the KnowItAll software.
La lettura di questo articolo è riservata ai soli Soci EVU Italia.
Autore | Veronika Marinović Forensic Science Centre ,Ivan Vučetić“, Zagreb, Croatia |
Pubblicato il | |
Tipologia |