5. United States v. Verrecchia, 196 F.3d 294 (1st Cir. 1999):
The defendant in Bell had been convicted of two violations of the Mann Act, 18 U.S.C. § 2421 (prohibiting the interstate transportation of “any woman or girl” for purposes of prostitution), for transporting two women at the same time. The [United States Supreme] Court, noting that when Congress chooses to allow multiple prosecutions for a single transaction it has no difficulty expressing its will, found the statute to be ambiguous on the allowable unit of prosecution. The Court thus applied the “presupposition of our law to resolve doubts in the enforcement of a penal code against the imposition of a harsher punishment,” and held that the simultaneous transportation of two women was only one violation of the Mann Act.

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