Ex post facto clause did not bar aggregation of amounts of contraband distributed before and after effective date of federal statute during course of single ongoing conspiracy. 938 F.2d 972.

No ex post facto clause violation despite crew members' claims that possession of drugs on ship became illegal only when ship's flag nation consented to authority of U.S. law. 35 F.3d 426.

Not violated by rule that, for purposes of criminal history calculation, state conviction for conduct which occurred after defendant's federal offense, but for which defendant was sentenced before defendant's sentencing on the federal offense, is counted as a prior sentence. 44 F.3d 749.