Facts
- U.S. customs officials investigated a heroin-by-mail operation in the Washington, D.C. area.
- A customs inspector at the New York City General Post Office intercepted several suspicious letter-sized airmail envelopes mailed from Thailand.
- The envelopes were unusually bulky and heavier than typical airmail letters.
- Acting under 19 U.S.C. § 482 and postal regulations, the inspector opened the envelopes at the point of entry and found heroin in eight of them.
- Ramsey and Kelly were indicted and convicted on federal narcotics charges based on the seized heroin.
Issues
- Whether the search was authorized under 19 U.S.C. § 482 based on “reasonable cause to suspect” the envelopes contained illegally imported merchandise or contraband.
- Whether the Fourth Amendment permits customs officials to open incoming international mail at the border without a warrant and without probable cause under the border-search doctrine.
Decision
- The Supreme Court reversed the court of appeals and reinstated the convictions.
- The Court held the inspector had “reasonable cause to suspect” under 19 U.S.C. § 482, making the search statutorily authorized.
- The Court held that opening and inspecting incoming international mail at the border without a warrant and without probable cause does not violate the Fourth Amendment.
- The Court rejected a constitutional distinction between items carried across the border and items entering by mail, treating the entry post office as the functional border.
- The Court declined to decide whether an unusually offensive manner of search could be unconstitutional and did not address any separate First Amendment limits, noting regulations barred reading correspondence without a warrant.
Legal Principles
- Routine border searches are “reasonable” under the Fourth Amendment even when conducted without a warrant and without probable cause.
- The border-search doctrine applies to letters and envelopes entering the United States from abroad; mode of entry (mail versus personal carriage) does not change the Fourth Amendment analysis.
- Under 19 U.S.C. § 482, customs officials may inspect incoming international mail when they have reasonable cause to suspect it contains illegally imported merchandise or contraband.
- Postal/customs rules may limit examination of correspondence content (e.g., reading letters) even when physical inspection for contraband is permitted.
Conclusion
The Court held that customs officials may open incoming international mail at the border on reasonable suspicion under statute and that such warrantless, non-probable-cause searches fall within the Fourth Amendment border-search exception, reinstating the defendants’ narcotics convictions.