atfthe bureau of alcohol , tobacco and firearms ciacentral intelligence agency csucrime scene unit , the nypds name for the csi department darpadefense advance research projects agency , the main research arm of the us department of defense edcexplosive detection canine , a dog especially trained to sniff out bombs and the ingredients of explosives eodexplosive ordnance disposal , the us militarys equivalent of a bomb squad esuemergency services unit etkexplosive test kit , used for detecting explosive residue in the field fbithe federal bureau of investigation f6asee andros f6a glock 19this versatile pistol is favored for its compactness and efficiency .