This сonsolidated appeal arises from two separate automobile searches by United States Border Patrol agents at the Sierra Blanca, Texas, permanent checkpoint. Defendant Oyarzun was arrested after a search of his vehicle uncovered a firearm, with its serial number filed off, hidden underneath the back seat of the car. Defendants Jackson and Browning were arrested after border patrol agents found approximately 3,500 Preludin pills in a cosmetic case in the trunk of their car. In separate proceedings in district court, the defendants in both cases filed motions to suppress the evidence obtained in the searches. The court, the same judge presiding at both proceedings, ordered suppression of the seized evidence on grounds that each search exceeded the scope of a valid search at a permanent border patrol checkpoint. The Government appeals, contending that law enforcement officers may search a vehicle for contraband at a checkpoint that operates as the functional equivalent of the border without consent, probable cause, a warrant, or even reasonable suspicion. For the reasons set forth below, we vacate the district court’s order suppressing the evidence in both сases.
I. FACTS AND PROCEDURAL HISTORY
A. United States v. Oyarzun
The evidentiary hearing on Oyarzun’s motion to suppress established the following facts: On December 17, 1983, Oyarzun, driving a 1983 Pontiac Grand Prix, approached the Sierra Blanca checkpoint. 1 Oyarzun was hesitant in approaching the stop. When border patrol agent Robert Saenz asked Oyarzun about his citizenship, first in English and then in Spanish, Oyarzun looked surprised and did not respond. Saenz asked Oyarzun for his permit. Because Oyarzun still looked surprised, Saenz told him to pull off the road into the secondary inspection area.
At the secondary inspection area, Oyarzun got out of his car, fumbling around in his wallet as border patrol agents Arthur Bullock and John Stensel approached him. Agent Stensel asked Oyarzun in Spanish *572 for his immigration papers and Bullock asked him to open the trunk. When Oyarzun opened the trunk, Bullock noticed that the spare tire was not securely mounted and that the trunk frame next to the back seat had been taped with gray duct tape. Bullock’s two years’ experience as a border patrol agent led him to suspect that contraband might be hidden in the car. He slit the duct tape, but saw nothing.
Meanwhile, Stensel was interviewing Oyarzun. Oyarzun produced documentation establishing that he was a Chilean national and that he was legally residing in the United States on a temporary basis. Bullock relayed his suspicions to Stensel, and Stensel then conducted an interior examination of the car. Stensel saw that the rear seat was not fastened to the floorboard, and lifted the seat. He there discovered a .38 caliber automatic pistol from which the serial number had been filed away. While Stensel was examining the interior of the car, Bullock continued his search of the trunk and discovered a brown paper bag and a suitcase which together contained over $30,000 in cash. Oyarzun’s arrest followed.
A federal grand jury indicted Oyarzun on one count of unlawfully transporting in interstate commerce a firearm with the serial number obliterated, in violation of 18 U.S.C. §§ 922(k) and 924(a). 2 Oyarzun moved to suppress the evidence seized during the search of his car on the grounds that the search exceeded the scope of a valid checkpoint search for illegal aliens and that the border patrol agents lacked probable cause to search for contraband. The district court granted the motion in open court, followed by its filing of written findings pursuant to Federal Rule of Criminal Procedure 12(e).
B. United States v. Jackson and Browning
On March 31, 1984, Charles Jackson drove a 1984 Chrysler LeBaron bearing California license plates into the Sierra Blanca checkpoint. Anthony Wayne Browning was a passenger in the car. While border patrol agents were questioning Jackson and Browning about their citizenship, Agent Fogt observed cigarette rolling papers аnd a glass pipe on the rear floorboard of the vehicle. At Fogt’s direction, Jackson opened the trunk, where the agent found a cosmetic case containing bottles of pills and a cardboard box containing twenty-four bottles marked “Preludin’’ with 100 pills in each bottle. The agents also discovered a small amount of marijuana residue in the back seat of the car and a paper bag containing cotton balls and a metal scrub pad underneath the front seat.
Jackson and Browning were indicted by a federal grand jury on April 18, 1984, with conspiracy to possess Preludin, a controlled substance, with intent to distribute and with possession with intent to distribute, in violation of 21 U.S.C. §§ 841(a)(1) and 846. 3 *573 Both defеndants moved to suppress the evidence seized from their automobile. The district court granted the' motion.
C. District Court’s Findings
In
Oyarzun,
the district court initially acknowledged that this Court has held the Sierra Blanca checkpoint to be the functional equivalent of the border.
4
See United States v. Dreyfus-de Campos,
In Jackson and Browning, the district court rejected the Government’s contentions that the scope of vehicle searches at the Sierra Blanca checkpoint is unfettered by any restraints whatsoever. Instead, the court found that some measurable objective criteria of criminal activity must be in evidence. Further, the court held that the agent was fully justified in examining the trunk area of Jackson and Browning’s car; but in the absence of probable cause or reasonable suspicion of criminal activity, defendants’ luggage could not be validly searched. Jackson and Browning, Record Vol. 2 at 22.
II. THE LAW
The issue raised by this appeal — whether law enforcement officers may sеarch a vehicle for contraband (as well as aliens) at a functional equivalent of the border without a warrant, consent, probable cause, or even reasonable suspicion — points up the uncertain and ostensibly conflicting state of Fifth Circuit border search case law. We *574 therefore think it helpful to examine the development of the law governing warrant-less searches at permanent checkpoints that have been determined to be the functional equivalent of the border.
In general, warrantless searches and seizures are unreasonable under the fourth amendment. An exception to this general rule is the warrantless search at thе international border, which is justified on the basis of sovereign self-protection.
United States v. Ramsey,
In
Almeida-Sanchez v. United States,
[Sjearches of this kind may in certain circumstances take place not only at the border itself, but at its functional equivalents as well. For example, searches at an established station near the border, at a point marking the confluence of two or more roads that extend from the border, might be functional equivalents of border searches. For another example, a search of the passengers and cargo of an airplane arriving at a St. Louis airport after a nonstop flight from Mexico City would clearly be the functional equivalent of a border search.
Id.
at 272,
Thereafter, in
Hart I,
this Court held that the Sierra Blanca permanent checkpoint is the functional еquivalent of the border for searches for illegal aliens. In discussing the functional equivalent aphorism the Court stated: “Long before the Supreme Court coined that phrase in
Almeida-Sanchez,
this Court implicitly treated permanent checkpoints as ‘functional equivalents’ of the border by upholding the validity of warrantless searches for illegal aliens at such locations.”
United States v. Martinez-Fuerte,
Fifth Circuit cases further delineated the scope of a valid search for illegal aliens at a permanent checkpoint that is the functional equivalent of the border. In
United States v. Alvarez-Gonzalez,
While this Court has never expressly considered what kind of functional equivalent of the border would justify a thorough search of a vehicle and its contents for contraband, we have applied the border-equivalent principle in cases involving searches for contraband. In the consolidated appeal of
United States v. Luddington
and
United States v. Nelums,
Most recently, in
United States v. Dreyfus-de Campos,
III. THE CASE SUB JUD1CE
In applying the principles discussed in Part II above, we are constrained to vacate the district court’s order suppressing the evidence seized during the searches involved in the instant appeals. In so doing, we are mindful of the historical perspective of the Sierra Blanca checkpoint’s status as the functional equivalеnt of the border for immigration searches. See Hart I. We are bound, however, by the precedent of this Circuit which has evolved since Hart I. The decisions in Luddington and Dreyfus-de Campos, the most recent cases in this Circuit originating out of the Sierra Blanca checkpoint, while not expressly turning on considerations of probable cause, reasonable suspicion, or consent, by implication hold that non-probable cause searches for contraband at Sierra Blanca are valid border searches because of that checkpoint’s legal status as the functional equivalent of the border.
In his brief, Browning suggests that our persistent use of the “functional equivalent' of the border” language unnecessarily injects cоnfusion and complexity into the area of border search law and offers to this Court the approach adopted by the Eleventh Circuit in
United States v. Garcia,
[W]e decline to follow prior decisions in using the ‘functional equivalent’ language to refer to Border Patrol or other checkpoint searches. These searches do not fit within the traditional definition of a border search, which refers to searches of persons, conveyances, or objects that have come into the United States from outside. As we have already noted, checkpoint searches do not require that the object of the search have crossed the border. We thus choose to refer to such searches simply as ‘checkpoint searches’ and not as searches at the ‘functional equivalent of the border.’ We view the ‘functional equivalent of the border’ language as peculiarly appropriate to describe those searches that, although not conducted at the actual physical border, take place after a border crossing at the first practicable detention point. Such searches are truly border searches because their sole justification is the fact that the border has been crossed. Because the person, conveyance, or object is searched at the first place where it comes to rest within the country, it can truly be considered as having ‘br[ought] the border with it.’
Accordingly, the orders of the district court granting defendants’ motions to suppress are vacated and the cases are remanded for further proceedings consistent with this opinion.
VACATED AND REMANDED
specially concurring:
While I adhere to Judge Johnson’s determination, in ruling on the validity of the searches conducted in these cases, that we are bound by this Court’s holdings in
United States v. Luddington,
Officials at checkpoints that are judicially deemed the functional equivalent of a border have been granted increasingly intrusive power in connection with the search of vehicles at these checkpoints, without any requirement of probable cause or reasonable suspicion. These include the power to stop and question occupants about aliens,
see United States v. Martinez-Fuerte,
Because neither
Luddington
nor
Dreyfus-de Campos
expressly addresses whether officers must show some cause in order to conduct a contraband search of an automobile at a checkpoint that is thе functional equivalent of a border, it is difficult to ascertain the authority upon which both decisions rely for the implied holding that such searches may proceed without a showing of cause.
Dreyfus-de Campos
relied primarily upon
Luddington,
which in turn relied heavily upon
Alvarez-Gonzalez II, supra,
a case in which this Court stated, “in some instances citizens may be subject to a full search for contraband at the functional equivalent of the border____”
In Brennan we held that an airport at which a search of an airplane occurred was not the functional equivalent of a border; accordingly, this Court’s assertion in that case that “agents [at the functional equivalent of a border] were entitled to conduct a full search for contraband without particularized knowledge of what Brеnnan or his plane was carrying ... ”, was dictum. Brennan, 538 F.2d at 714-15. In Brennan, we also summarized the conditions for entry into this country by stating that “[t]he national interests in self-protection and protection of tariff revenues authorize a requirement that persons crossing the border identify themselves and their belongings as entitled to enter and be subject to search.” Id. at 715.
The above language in Brennan paraphrases language in Almeida-Sanchez which describes the permissible intrusiveness of a regular border search. In coining the phrase “functional equivalent of a border,” the Supreme Court in Almeida-Sanchez stated that:
[w]hatever the permissible scope of intrusiveness of a routine border search might be, searches of this kind may in certain circumstances take place not only at the border itself, but at its functional equivаlents as well. For example, searches at an established station near the border, at a point marking the confluence of two or more roads that extend from the border, might be functional equivalents of border searches. For another example, a search of the passengers and cargo of an airplane arriving at a St. Louis airport after a nonstop flight from Mexico City would clearly be the functional equivalent of a border search.
First, in Almeida-Sanchez the Supreme Court was dealing with a search by a roving border patrol for illegal aliens; consequently, the quoted language above describing what constitutes the functional equivalent of' a border was not required for the holding and thus was mere dictum. It is unclеar, therefore, whether the dictum enunciated in Almeida-Sanchez would be controlling today. Second, and just as important, the Supreme Court has yet to directly address whether a contraband search at the functional equivalent of a border would be permissible without any showing of cause.
The factors that determine just what constitutes the functional equivalent of a border have been formulated and molded by lower courts since 1973 when the Supreme Court decided
Almeida-Sanchez.
In
Almeida-Sanchez,
the Court described what it considered to be places that would constitute the functional equivalent of a border. One place, quite understandably, is the point of first arrival of an airplane entering this country. Another plaсe, much more difficult to define, is the “point [near the border] marking the confluence of two or more roads that extend from the border ...”
Interpreting and expanding the Supreme Court’s illustration of functional equivalence, this Court isolated three major con
*579
siderations in determining whether an interior checkpoint is the functional equivalent of a border.
Alvarez-Gonzalez I, supra.
They are the “relative permanence of the checkpoint; relatively minimal interdiction by it on domestic traffic; and the checkpoint’s capability to monitor portions of international traffic not otherwise controllable.”
Alvarez-Gonzalez II,
As Judge Goldberg’s insightful dissent in
Alvarez-Gonzalez II,
Given the subtle expansion by this Court of the Supreme Court’s original concept of the functional equivalent of a border, illustrated in one instance as “a point [near the border] marking the confluence of two or more roads that extend from the border ...,”
Nevertheless, we are bound, to my discomfort and I am sure to that as well of the able district judge below, by the prior holdings of this Court in Luddington and in Dreyfus-de Campos to reach the conclusion we do today in these cases that the searches conducted did not suffer from any constitutional infirmity.
Notes
. For a detailed description of the Sierra Blanca checkpoint and its operations, see
United States v. Hart,
. These statutes provide:
§ 922. Unlawful acts
(k) It shall be unlawful for any person knowingly to transport, ship, or receive, in interstate or foreign commerce, any firearm which has had the importer’s or manufacturer’s serial number removed, obliterated, or altered.
§ 924. Penalties
(a) Whoever violates any provision of this chapter or knowingly makes any false statement or representation with respect to the information required by the provisions of this chapter to be kept in the records of a person licensed under this chapter, or in applying for any license or exemption or relief from disability under the provisions of this chapter, shall be fined not more than $5,000, or imprisoned not more than five years, or both, and shall become eligible for parole as the Board of Parole shall determine.
. 21 U.S.C. § 841 provides in pertinent part:
(a) Except as authorized by this subchapter, it shall be unlawful for any person knowingly or intentionally—
(1) to manufacture, distribute, or dispense, or possess with intent to manufacture, distribute, or dispense, a controlled substanсe;
Section 846 states:
Any person who attempts or conspires to commit any offense defined in this sub-chapter is punishable by imprisonment or fine or both which may not exceed the maximum punishment prescribed for the offense, the commission of which was the object of the attempt or conspiracy.
. A court may take judicial notice of the functional equivalent status of a particular checkpoint once it has been established.
United States v. Salinas,
This Court has established a tripartite test for determining functional equivalency: "relative performance of the checkpoint; minimal interdiction by the checkpoint of the flow of domestic traffic; and the practical necessity of the substitution of the interior checkpoint for the border in order to monitor international traffic.”
United States v. Reyna,
. In attempting "to clarify this grey and nebulous area of Fourth Amendment guarantees,” the district court examined over 25 Fifth Circuit opinions and concluded thаt valid permanent checkpoint searches "are factually limited to searches of large areas within a vehicle where an illegal alien could hide, searches based upon consent, or searches based upon probable cause discovered once the vehicle was validly stopped and its large areas searched."
United States v. Oyarzun,
. In
United States v. Martinez-Fuerte,
Permanent checkpoints ... are maintained at or near intersections of important roads leading away from the border. They operate on a coordinated basis designed to avoid circumvention by smugglers and others who transport the illegal aliens. Temporary checkpoints, which operate like permanent ones, occasionally are established in other strategic locations. Finally, roving patrols are maintained to supplement the checkpoint system.
The statutory authority for all three operations is 8 U.S.C. § 1357(a)(1) & (3).
. The Supreme Court vacated this Court’s judgment in
Hart I
for further consideration in light of its intervening decisions in
United States v. Brignoni-Ponce,
. Alvarez-Gonzalez II was preceded by
United States v. Alvarez-Gonzalez,
.
In
Alvarez-Gonzalez II, supra,
we quoted the district court’s description of the checkpoint procedures: "When a search for aliens is determined to be justified, only compartments large enough to cоnceal a body are scrutinized; a search of most such cavities takes less than a minute.” We then went on to state that, "it is just .'searches of this kind’ that the Supreme Court in
Almeida-Sanchez
[v.
United States]
contemplated might be made at functional equivalents of the border. 413 U.S. [266] at 272,
. The dissent in
Alvarez-Gonzalez II
questioned the majority’s determination that 40% of the northbound La Gloria traffic was domestic while 60% was international and thus that "international traffic clearly predominates at the checkpoint."
. As Judge Johnson’s opinion makes clear, "neither of the defendant’s in this consolidated appeal contested the continued viability of Sierra Blanca as the functional equivalent of a border,” Opinion 6 at n. 4; nevertheless, I do not feel constrained to set forth my doubts concerning the status of the Sierra Blanca checkpoint. The last opportunity to exhaustively evaluate the status of the Sierra Blanca checkpoint arose over six years ago in
Luddington, supra.
(In
Dreyfus-de Campos,
decided two years ago, this Court merely concluded that the paucity of statistics offered by the party challenging the functional equivalent status of Sierra Blanca did not warrant a recharacterization of the checkpoint). In
Luddington
we reaffirmed the original determination in
United States v. Hart,
While no one can be sure of the exact change in the flow of international and domestic traffic patterns over the past six years, I note that the
Luddington
Court found that the district court’s conclusions favoring maintenance of the checkpoint as a functional equivalent, were not the result of "firm statistical data” but rather were the product of "logical inferences drawn from the record."
Luddington,
