United States v. Flores-Montano, No. 02-1794.

CourtUnited States Supreme Court
Writing for the CourtRehnquist
Citation541 U.S. 149
PartiesUNITED STATES v. FLORES-MONTANO
Docket NumberNo. 02-1794.
Decision Date30 March 2004
541 U.S. 149
UNITED STATES
v.
FLORES-MONTANO
No. 02-1794.
Supreme Court of United States.
Argued February 25, 2004.
Decided March 30, 2004.

At the international border in southern California, customs officials seized 37 kilograms of marijuana from respondent's gas tank by removing and disassembling the tank. After respondent was indicted on federal drug charges, he moved to suppress the drugs recovered from the gas tank, relying on a Ninth Circuit panel decision holding that a gas tank's removal requires reasonable suspicion under the Fourth Amendment. The District Court granted the motion, and the Ninth Circuit summarily affirmed.

Held: The search did not require reasonable suspicion. In the decision relied on below, the Ninth Circuit panel seized on language from United States v. Montoya de Hernandez, 473 U. S. 531, 538, that used "routine" as a descriptive term in discussing border searches. The panel took "routine," fashioned a new balancing test, and extended it to vehicle searches. But the reasons that might support a suspicion requirement in the case of highly intrusive searches of persons simply do not carry over to vehicles. Complex balancing tests to determine what is a "routine" vehicle search, as opposed to a more "intrusive" search of a person, have no place in border searches of vehicles. The Government's interest in preventing the entry of unwanted persons and effects is at its zenith at the international border. United States v. Ramsey, 431 U. S. 606, 616. Congress has always granted the Executive plenary authority to conduct routine searches and seizures at the border, without probable cause or a warrant, in order to regulate the collection of duties and to prevent the introduction of contraband into this country. Montoya de Hernandez, 473 U. S., at 537. Respondent's assertion that he has a privacy interest in his fuel tank, and that the suspicionless disassembly of his tank is an invasion of his privacy, is rejected, as the privacy expectation is less at the border than it is in the interior, id., at 538, and this Court has long recognized that automobiles seeking entry into this country may be searched, see Carroll v. United States, 267 U. S. 132, 154. And while the Fourth Amendment "protects property as well as privacy," Soldal v. Cook County, 506 U. S. 56, 62, the interference with a motorist's possessory interest in his gas tank is justified by the Government's paramount interest in protecting the border. Thus, the Government's authority to conduct suspicionless inspections at the border

[541 U.S. 150]

includes the authority to remove, disassemble, and reassemble a vehicle's fuel tank. Pp. 152-156.

Reversed and remanded.

REHNQUIST, C. J., delivered the opinion for a unanimous Court. BREYER, J., filed a concurring opinion, post, p. 156.

CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT.

Lisa S. Blatt argued the cause for the United States. With her on the briefs were Solicitor General Olson, Assistant Attorney General Wray, Deputy Solicitor General Dreeben, Daniel S. Goodman, and Alfonso Robles.

Steven F. Hubachek, by appointment of the Court, 540 U. S. 1043, argued the cause for respondent. With him on the brief were Vincent J. Brunkow and John C. Lemon.*

CHIEF JUSTICE REHNQUIST delivered the opinion of the Court.


Customs officials seized 37 kilograms — a little more than 81 pounds — of marijuana from respondent Manuel Flores-Montano's gas tank at the international border. The Court of Appeals for the Ninth Circuit, relying on an earlier decision by a divided panel of that court, United States v. Molina-Tarazon, 279 F. 3d 709 (2002), held that the Fourth Amendment forbade the fuel tank search absent reasonable suspicion. No. 02-50306, 2003 WL 22410705 (Mar. 14, 2003). We hold that the search in question did not require reasonable suspicion.

Respondent, driving a 1987 Ford Taurus station wagon, attempted to enter the United States at the Otay Mesa Port of Entry in southern California. A customs inspector conducted an inspection of the station wagon, and requested respondent to leave the vehicle. The vehicle was then taken to a secondary inspection station.

541 U.S. 151

At the secondary station, a second customs inspector inspected the gas tank by tapping it, and noted that the tank sounded solid. Subsequently, the inspector requested a mechanic under contract with Customs to come to the border station to remove the tank. Within 20 to 30 minutes, the mechanic arrived. He raised the car on a hydraulic lift, loosened the straps and unscrewed the bolts holding the gas tank to the undercarriage of the vehicle, and then disconnected some hoses and electrical connections. After the gas tank was removed, the inspector hammered off bondo (a putty-like hardening substance that is used to seal openings) from the top of the gas tank. The inspector opened an access plate underneath the bondo and found 37 kilograms of marijuana bricks. The process took 15 to 25 minutes.

A grand jury for the Southern District of California indicted respondent on one count of unlawfully importing marijuana, in violation of 21 U. S. C. § 952, and one count of possession of marijuana with intent to distribute, in violation of § 841(a)(1). Relying on Molina-Tarazon, respondent filed a motion to suppress the marijuana recovered from the gas tank. In Molina-Tarazon, a divided panel of the Court of Appeals held, inter alia, that removal of a gas tank requires reasonable suspicion in order to be consistent with the Fourth Amendment. 279 F. 3d, at 717.

The Government advised the District Court that it was not relying on reasonable suspicion as a basis for denying respondent's suppression motion, but that it believed Molina-Tarazon was wrongly decided. The District Court, relying on Molina-Tarazon, held that reasonable suspicion was required to justify the search and, accordingly, granted respondent's motion to suppress. The Court of Appeals, citing Molina-Tarazon, summarily affirmed the District Court's judgment. No. 02-50306, 2003 WL 22410705 (CA9, Mar. 14, 2003). We granted certiorari, 540 U. S. 945 (2003), and now reverse.

541 U.S. 152

In Molina-Tarazon, the Court of Appeals decided a case presenting...

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181 practice notes
  • Part II
    • United States
    • Federal Register November 30, 2005
    • November 30, 2005
    ...Amendment because of the reduced expectation of privacy inherent in travel and at border crossings. See United States v. Flores-Montano, 541 U.S. 149, 152 (2004) (noting that the Government's interest in preventing the entry of unwanted persons and effects is at its zenith at the internatio......
  • Quarantine, inspection, and licensing: Communicable diseases control,
    • United States
    • Federal Register November 30, 2005
    • November 30, 2005
    ...Amendment because of the reduced expectation of privacy inherent in travel and at border crossings. See United States v. Flores-Montano, 541 U.S. 149, 152 (2004) (noting that the Government's interest in preventing the entry of unwanted persons and effects is at its zenith at the internatio......
  • U.S. v. Whitted, No. 06-3271.
    • United States
    • United States Courts of Appeals. United States Court of Appeals (3rd Circuit)
    • September 4, 2008
    ...requirement. United States v. Ramsey, 431 U.S. 606, 619, 97 S.Ct. 1972, 52 L.Ed.2d 617 (1977); see also United States v. Flores-Montano, 541 U.S. 149, 152-53, 124 S.Ct. 1582, 158 L.Ed.2d 311 (2004). The exception applies not only at the physical boundaries of the United States, but also at ......
  • United States v. Cano, No. 17-50151
    • United States
    • United States Courts of Appeals. United States Court of Appeals (9th Circuit)
    • August 16, 2019
    ...nonroutine search must be supported by "reasonable suspicion." Id. at 537–41, 105 S.Ct. 3304 ; see also United States v. Flores-Montano , 541 U.S. 149, 152, 124 S.Ct. 1582, 158 L.Ed.2d 311 (2004) (suggesting that nonroutine searches are limited to "highly intrusive searches of the person" i......
  • Request a trial to view additional results
175 cases
  • Alasaad v. Nielsen, No. 17-cv-11730-DJC
    • United States
    • United States District Courts. 1st Circuit. United States District Courts. 1st Circuit. District of Massachusetts
    • November 12, 2019
    ...U.S. at 616, 97 S.Ct. 1972, to "prevent[ ] the entry of unwanted persons and effects" across the border, United States v. Flores-Montano, 541 U.S. 149, 152, 124 S.Ct. 1582, 158 L.Ed.2d 311 (2004). "Absent more precise guidance from the founding era, we generally determine whether to exempt ......
  • Long v. Barr, Civil No. 1:15-cv-1642
    • United States
    • United States District Courts. 4th Circuit. United States District Court (Eastern District of Virginia)
    • April 2, 2020
    ...in preventing the entry of unwanted persons and effects is at its zenith at the international border." United States v. Flores-Montano , 541 U.S. 149, 152, 124 S.Ct. 1582, 158 L.Ed.2d 311 (2004). The Supreme Court "stated that ‘searches made at the border, pursuant to the longstanding right......
  • Lopez v. Sessions, 18 Civ. 4189 (RWS)
    • United States
    • United States District Courts. 2nd Circuit. United States District Courts. 2nd Circuit. Southern District of New York
    • June 12, 2018
    ...interest in preventing the entry of unwanted persons and effects is at its zenith at the international border." U.S. v. Flores-Montano, 541 U.S. 149, 149 (2004) (quoting U.S. v. Ramsey, 431 U.S. 606, 616 (1972). This Circuit has recognized a "compelling" government interest in maintaining s......
  • U.S. v. Whitted, No. 06-3271.
    • United States
    • United States Courts of Appeals. United States Court of Appeals (3rd Circuit)
    • September 4, 2008
    ...requirement. United States v. Ramsey, 431 U.S. 606, 619, 97 S.Ct. 1972, 52 L.Ed.2d 617 (1977); see also United States v. Flores-Montano, 541 U.S. 149, 152-53, 124 S.Ct. 1582, 158 L.Ed.2d 311 (2004). The exception applies not only at the physical boundaries of the United States, but also at ......
  • Request a trial to view additional results
4 books & journal articles
  • Electronic Searches at the Border: Reasonable Suspicion or None at All? The Circuit Split and Potential Impact on Higher Education.
    • United States
    • Suffolk University Law Review Vol. 54 Nbr. 4, September 2021
    • September 22, 2021
    ...n.61. (13.) See Ramsey, 431 U.S. at 620 (explaining rationale behind border search exception); see also United States v. Flores-Montano, 541 U.S. 149, 153 (2004) (providing history of Court's justification for border exception); O'Grady, supra note 12, at 2257 (describing historical justifi......
  • Electronic Searches at the Border: Reasonable Suspicion or None at All? The Circuit Split and Potential Impact on Higher Education.
    • United States
    • Suffolk University Law Review Vol. 54 Nbr. 3, June 2021
    • June 22, 2021
    ...n.61. (13.) See Ramsey, 431 U.S. at 620 (explaining rationale behind border search exception); see also United States v. Flores-Montano, 541 U.S. 149, 153 (2004) (providing history of Court's justification for border exception); O'Grady, supra note 12, at 2257 (describing historical justifi......
  • CONSTITUTIONAL PANDEMIC SURVEILLANCE.
    • United States
    • Journal of Criminal Law and Criminology Vol. 111 Nbr. 4, September 2021
    • September 22, 2021
    ...(7th Cir. 1993) (noting that strip and body cavity searches are intrusive and "non routine"). (90) See United States v. Flores-Montano, 541 U.S. 149, 154 (91) Quon, 560 U.S. at 763 (quoting Vernonia Sch. Dist. 47J v. Acton, 515 U.S. 646, 663 (1995)). (92) Id. (quoting Skinner v. Ry. Lab. Ex......
  • Law Enforcement Case Law
    • United States
    • Criminal Justice Review Nbr. 30-2, September 2005
    • September 1, 2005
    ...v. Cortez-Rocha, 383 F.3d 1093 (9th Cir. 09-21-04).U.S. v. Elliott, 322 F.3d 710 (9th Cir. 03-10-03).U.S. v. Flores-Montano, 541 U.S. 149 (2004).U.S. v. Foster,376 F.3d 577 (6th Cir. 07-20-04).U.S. v. Garrido-Santana, 360 F.3d 565 (6th Cir. 02-20-04).U.S. v. Gould, 364 F.3d 578 (5th Cir. 03......

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