The following excerpt is from U.S. v. Simmons, 923 F.2d 934 (2nd Cir. 1991):
Expert testimony in the field of narcotics operations is often helpful to jurors "who [are] likely unfamiliar with words and phrases used by narcotics dealers to camouflage their activities." United States v. Kusek, 844 F.2d 942, 949 (2d Cir.), cert. denied, 488 U.S. 860, 109 S.Ct. 157, 102 L.Ed.2d 128 (1988).
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