This work is realized in view to determine appropriate techniques for the revelation of mineral gun shoot residues. Picked up from the crime scene. these indicial traces are used as material proofs for helping and guiding judicial investigations. As achievement of this process. https://www.nacrack.com/mega-choice-2005-2006-NISSAN-ALTIMA-Radio-Receiver-AM-FM-stereo-single-CD-Player-G-mega-value/