In a prosecution for drug possession, denial of defendant's motion to suppress evidence is affirmed over claims that a search of his stateroom on a cruise ship by a customs officer, after the ship docked at the conclusion of a foreign cruise, was conducted without reasonable suspicion of criminal activity in violation of Fourth Amendment. Although the underlying search in the present case was defensible as a "routine border search", wherein reasonable suspicion was not required, there may be circumstances under which the search of a passenger cabin at the border might be deemed non-routine.