FirstDefender is a lightweight, rugged, handheld instrument for the immediate identification of unknown solids, liquids and mixtures, even through the walls of their containers. Ahura Corp.'s First Defender is an all-optical system based on Raman spectroscopy. Weighing in at less than 4 pounds, including battery and internal computer, the First Defender XL has a vast library including WMD, chemical weapons, explosives, toxic chemicals, white powders, narcotics, contraband and forensics. Sophisticated algorithms allow users to easily obtain correct results at the scene without false positives and false negative results. Point-and-shoot operation through containers avoids contamination and maintains evidence.