UNITED STATES COURT OF APPEALS
                        FOR THE FIFTH CIRCUIT
                         ____________________

                              No. 98-50921
                          ____________________

                        UNITED STATES of AMERICA,

                                                        Plaintiff-Appellee,

                                  versus

                          JAMIE CHACON MORALES,

                                                    Defendant-Appellant.

_________________________________________________________________

           Appeals from the United States District Court
                 for the Western District of Texas

_________________________________________________________________
                         October 4, 1999

Before DUHÉ, BARKSDALE and EMILIO M. GARZA, Circuit Judges.

RHESA HAWKINS BARKSDALE, Circuit Judge:

     Having been convicted of conspiracy, and its corresponding

substantive offense, for possession with intent to distribute

marijuana, in violation of 21 U.S.C. §§ 846, 841(a)(1), the sole

issue presented by Jamie Chachon Morales is whether, consistent

with the Fourth Amendment, and based upon the totality of the

circumstances, a Border Patrol Agent had the requisite reasonable

suspicion, formed by articulable facts and rational inferences, to

make an investigatory stop of Morales, far inland from the Mexican

border.    We AFFIRM.

                                    I.

     On 11 December 1997, Border Patrol Agent Bollier, a 28-year

veteran, who was in charge of the Midland, Texas, Border Patrol

station,    stopped     Morales   on     I-20,   near     Penwell,   Texas,
approximately 150 miles north of the border.        After observing

characteristics about Morales’ pickup truck as it passed the

Agent’s parked vehicle (such as being heavily loaded and having a

fiberglass cover over the bed of the truck), and then following

Morales for five miles, the Agent made the investigatory stop,

because, based upon his observations and inferences drawn from

them, all prompted by his extensive experience, he suspected

criminal activity.   After a brief conversation with Morales, the

Agent received permission to search the truck; he found 1400 pounds

of marijuana.

     Morales’ suppression motion, claiming a lack of reasonable

suspicion for the stop, was denied after a hearing at which Agent

Bollier testified.   Morales was convicted at a bench trial and

sentenced, inter alia, to 68 months imprisonment.

                                  II.

     For the sole investigatory stop issue, Morales concedes as

true all of the facts underlying the suppression ruling; the stop-

was-reasonable-ruling is reviewed de novo.    E.g., United States v.

Villalobos, 

, 288 (5th Cir. 1998). Suppression hearing

evidence is viewed in the light most favorable to the prevailing

party.   

stop must be justified by some objective

manifestation that the person stopped is, or is about to be,

engaged in criminal activity.”     United States v. Cortez, 

, 417 (1981) (emphasis added). Accordingly, “officers on roving

patrol may stop vehicles only if they are aware of specific


                                 - 2 -
articulable facts, together with rational inferences from those

facts, that reasonably warrant suspicion that the vehicles contain

[, inter alia,] aliens who may be illegally in the country”.

United States v. Brignoni-Ponce, 422 U.S. 873,884 (1975) (emphasis

added); see, e.g., 

; 

; United States v. Inocencio, 

, 722 (5th Cir.

1994).

     Factors that may be considered in deciding whether to make an

investigatory    stop      include,     but   are     not   limited    to:      (1)

“characteristics     of    the   area    in   which     [Agents]      encounter   a

vehicle”; (2) “proximity to the border”; (3) “the usual patterns of

traffic on the particular road”; (4) “previous experience with

alien    traffic”;   (5)     “information     about    recent   illegal      border

crossings in the area”, or other criminal activity there; (6)

“[t]he driver’s behavior”, such as “erratic driving or obvious

attempts to evade officers”; (7) the type vehicle, or its other

“[a]spects”,    such    as    types   known    to     “officers    ...   [to   be]

frequently used for transporting concealed aliens”; (8) “[t]he

vehicle may appear to be heavily loaded”; (9) “it may have an

extraordinary number of passengers”; (10) they may be “trying to

hide”; and (11) the officer may “recognize the characteristic

appearance of persons who live” outside the United States, such as

“in Mexico”.    

, as expanded by

its progeny; see, e.g., 

(factors

expanded to cover other types of criminal activity in addition to

alien trafficking).


                                      - 3 -
      “No single factor is determinative; the totality of the

particular circumstances must govern the reasonableness of any stop

by   roving    border   patrol    officers.”    United   States    v.   Moreno-

Chaparro, 

, 631-32 (5th Cir. 1999) (emphasis added).

“Obviously[,] only those factors known to the officer at the time

of the stop can be considered when determining whether the stop was

reasonable.”      

      Of considerable importance to the case at hand is that, “[i]n

all situations the officer is entitled to assess the facts in light

of his experience in detecting illegal entry[,] ... smuggling”, or

other criminal activity.          

; see,

e.g., 

; United States v. Aldaco, 

, 151 (5th Cir. 1999); 

.

      Agent Bollier had 28-years experience interdicting, among

other things, smugglers; he had handled hundreds of such cases. At

the suppression hearing, based on this extensive experience, he

articulated the numerous facts and corresponding inferences that

prompted the investigatory stop.

      The     Agent   testified   that   I-20   is   “notorious     for   alien

smuggling and narcotics”.         It has its western terminus at I-10,

approximately 120 miles east of El Paso, Texas, and runs easterly

cross-country through numerous heavily populated areas, including

at least six with connecting north/south interstate highways:

Dallas,     Texas;    Shreveport,    Louisiana;      Jackson,     Mississippi;

Birmingham, Alabama; Atlanta, Georgia; and Columbia, South Carolina

(eastern terminus).      I-10, the I-20 western terminus, runs through


                                     - 4 -
El Paso, a heavily trafficked border crossing point.           Moreover,

southeast from El Paso for approximately 60 miles,       I-10 runs very

close   to   the   border.   And,     the   I-10   terminus   for   I-20,

approximately 30 miles southwest of Pecos, Texas, is approximately

100 miles north of the border.      That area of Texas south of the I-

10/I-20 intersection, which includes Big Bend National Park on the

border, is frequently (and then some) used for illegal trafficking

of aliens and drugs.

     In the past year alone, the Agent had detained approximately

600 illegal aliens on this stretch of the highway.            For those

instances, 15-20 aliens were usually found hidden in the back of a

van or pickup truck.

     The Agent was parked facing eastbound traffic (toward Dallas),

where the highway had a series of bumps.      He selected this spot in

order to observe the reaction of vehicles driven over those bumps.

A heavily loaded vehicle tended to keep bouncing or “floating” as

it passed; Morales’ pickup truck did so.

     A similar factor, observed later by the Agent after he began

following Morales, was that the tires on the pickup truck appeared

to be underinflated.    This condition usually results from a heavy

load.

     The pickup truck had a fiberglass cover over the truck bed.

The Agent knew that smugglers use such cover to hide contraband.

For example, based on his experience, persons could have been lying

under it.




                                 - 5 -
     In addition, Morales did a “doubletake” when he passed the

Agent’s stationary, marked Border Patrol vehicle.      Immediately

thereafter, the pickup truck’s motor sounds changed, indicating

that the vehicle was slowing down.

     The majority of the smuggling detected by the Agent occurred

between 9:30-10:00 a.m.    Morales passed by the Agent during that

time period.

     These observations and inferences caused Agent Bollier to

follow Morales — the first vehicle the Agent followed that day.   He

had been parked by the side of the interstate, visible for about

200 yards, observing traffic since 8:00 a.m., and hundreds of

vehicles had passed.

     Upon reading Morales’ license plate, Agent Bollier checked the

vehicle registration.     The registered owner was “E. J. Philips”

from Dallas, Texas. The Agent thought Morales’ Hispanic appearance

was inconsistent with the non-Hispanic surname of the registered

owner.

     Additionally, Morales was paying more attention, through use

of the rear view mirror, to Agent Bollier’s vehicle than to the

road, and was “weaving back and forth across the line”.      These

factors further raised the Agent’s level of suspicion that illegal

activity was afoot.

     It goes without saying that inland Border Patrol investigatory

stops prompt frequent appeals to our court; each appeal is fact-

specific in the extreme.     In short, the Brignoni-Ponce factors,

expanded and almost codified by its progeny, have been applied by


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our court time ... and time ... and time again.        For example, the

just rendered opinion in    United States v. Orozco, 

(5th Cir. 29 Sept. 1999), concerns Agent Bollier discovering 730

pounds of marijuana in another pickup truck.

     Frequent application of any rule of law, especially when the

application is not based directly on the rule, but instead on

another case, or other cases, applying it, can lead to blurring the

rule’s original clear message.       Accordingly, especially for fact-

specific   applications,   it   is   helpful   to   return   to   original

precedent; in this instance, Cortez:

           Courts have used a variety of terms to capture
           the   elusive   concept   of   what   cause   is
           sufficient to authorize police to stop a
           person. Terms like “articulable reasons” and
           “founded suspicion” are not self-defining;
           they fall short of providing clear guidance
           dispositive of the myriad factual situations
           that arise. But the essence of all that has
           been written is that the totality of the
           circumstances–the whole picture–must be taken
           into account. Based upon that whole picture
           the    detaining    officers    must    have   a
           particularized    and   objective    basis   for
           suspecting the particular person stopped of
           criminal activity.

                The idea that an assessment of the whole
           picture must yield a particularized suspicion
           contains two elements, each of which must be
           present before a stop is permissible. First,
           the assessment must be based upon all the
           circumstances.    The analysis proceeds with
           various objective observations, information
           from police reports, if such are available,
           and consideration of the modes or patterns of
           operation of certain kinds of lawbreakers.
           From these data, a trained officer draws
           inferences and makes deductions–inferences and
           deductions that might well elude an untrained
           person.



                                 - 7 -
               The process does not deal with hard
          certainties, but with probabilities.       Long
          before   the   law   of    probabilities    was
          articulated   as   such,    practical    people
          formulated certain common sense conclusions
          about human behavior; jurors as factfinders
          are permitted to do the same–and so are law
          enforcement officers. Finally, the evidence
          thus collected must be seen and weighed not in
          terms of library analysis by scholars, but as
          understood by those versed in the field of law
          enforcement.

                The second element contained in the idea
          that an assessment of the whole picture must
          yield a particularized suspicion is the
          concept that the process just described must
          raise    a   suspicion   that   the   particular
          individual being stopped is engaged in
          wrongdoing.     Chief Justice Warren, speaking
          for the Court in Terry v. Ohio ... said that
          “[t]his    demand   for   specificity   in   the
          information upon which police action is
          predicated is the central teaching of this
          Court’s Fourth Amendment 

(citation omitted; emphasis added, except that

concerning Terry).

     In the light of controlling precedent applied to the facts

observed and articulated by the Agent and the rational inferences

he drew from those facts, there was reasonable suspicion to make

the investigatory stop. Again, the standard is not whether any one

factor is sufficient; instead, we consider the totality of the

circumstances, based upon the officer’s being “aware of specific

articulable facts, together with [his] rational inferences from

those facts”.   

.

     Along this line, our court has often held that, for obvious

reasons, the proximity of the stop to the border is the “paramount

factor” to consider; and that this factor “is missing” if the stop


                               - 8 -
is, as here, more than 50 miles from the border.          

.      In any event, Agent Bollier did not observe anything

indicating    that   Morales’   vehicle    had   come   from   Mexico.   As

discussed, his observations about many other factors, and                the

rational inferences he drew from them, more than satisfied the

reasonable suspicion required by the Fourth Amendment.

       For this “totality of the circumstances” approach, as Cortez

emphasizes, the officer’s experience is the obvious backdrop for

those facts and inferences; that experience informs the “specific

articulable facts” he observes, and the “rational inferences” he

draws from them, in deciding whether to make the stop.              In this

regard, as Cortez reminds, a fact or event, unremarkable to an

inexperienced officer, may well sound an alarm to an experienced

one.    For example, the Agent testified that, had the truck not

appeared to have been so heavily loaded, he probably would not have

stopped it.

       Agent Bollier had 28-years experience as a Border Patrol

Agent, involving hundreds of smuggling cases.              Indeed, he had

detained approximately 600 illegal aliens on this stretch of

highway in the past year.       The following colloquy from the Agent’s

suppression hearing testimony, concerning how he utilized the bumps

in the highway as one means of looking for illegal activity, speaks

volumes about his expertise in interdicting criminal activity:

           Q.   Well, is there anything about this
           particular location near Penwell that makes it
           a good place for you to watch for smuggling
           activity?



                                   - 9 -
          A.   Yes. In that area there’s a -- a series
          of bumps in the highway and if a vehicle is
          loaded, you can usually spot it, you know, you
          can tell by the way the vehicle rides if it is
          loaded or not.

          Q.   Okay. Can you explain in a little more
          detail the significance of these bumps or --

          A.   Well, when they hit the bumps the vehicle
          will float if it’s heavily loaded.       It --
          that’s the only way I can explain it.       It
          floats. It just keeps bouncing.

          Q.   And   if   it’s   not     loaded,   obviously   it
          doesn’t.

          A.   Yeah -- well, now, we have encountered
          ways that they’ve tried to hide this. They
          put 2X4s in the springs and so on and so
          forth.   But when they do that, the vehicle
          hits solid. It doesn’t bounce.

(Emphasis added.)

     Another    example   of   the    value   of   the   Agent’s   experience

concerns his suspicion about the fiberglass cover over the bed of

the pickup truck; the cover was almost flush with the top of the

sides around the bed.      Based on the Agent’s experience, he knew

that approximately 30 persons could be hidden under the cover,

“[b]ecause [illegal aliens] weave themselves together, their legs

around arms”.

     Agent Bollier’s experience — his ability to be aware of

“specific articulable facts” and to draw “rational inferences from

those facts” — paid dividends; he was able to form the requisite

reasonable suspicion — starting with the fact that the truck

appeared to be heavily loaded — to make the investigatory stop.            As

held by the able district judge, the stop was not violative of the

Fourth Amendment.

                                     - 10 -
                         III.

For the foregoing reasons, the judgment is

                                             AFFIRMED.




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