Equipment for gunshot residue analysis methods for determining the presence of gunshot residue and method for determining the shooting distance

摘要

The invention relates to a device for analysing gunshot residue, consisting of a device based on laser-induced breakdown spectroscopy, comprising: a pulsed laser head (1); an optical system (2) for guiding and focusing the laser; at least one spectrometer (3) for analysing plasma emissions; an optical system (4) for guiding the radiation emitted by the plasma towards the spectrometer (3); a system for synchronising the spectrometers (3) with the laser pulse; a system (5) for representing and/or processing the captured spectra; and a cover (7) for the optical laser-guiding and -focusing system (2), one of the ends of the cover (7) including a zone (8, 8') which is equipped with multiple projecting supporting elements (9, 9') and which can be detached and replaced.