United States v. Doe

                  UNITED STATES COURT OF APPEALS
                      FOR THE FIRST CIRCUIT

                                           
                                                     

No. 94-1096

                    UNITED STATES OF AMERICA,

                            Appellee,

                                v.

            JOHN DOE, a/k/a GERONIMO PIZARRO-CALDERON,

                      Defendant, Appellant.

                                           
                                                     

           APPEAL FROM THE UNITED STATES DISTRICT COURT

                 FOR THE DISTRICT OF PUERTO RICO

           [Hon. Carmen C. Cerezo, U.S. District Judge]
                                                                

                                           
                                                     

                     Torruella, Chief Judge,
                                                     

                  Aldrich, Senior Circuit Judge,
                                                         

                     and Cyr, Circuit Judge.
                                                     

                                           
                                                     

   Rafael D. Castro Lang for appellant.
                                  
   Jos   A.  Quiles-Espinosa, Senior  Litigation Counsel,  with whom
                                      
Guillermo Gil,  United States  Attorney, and Ernesto  Hern ndez-Mil n,
                                                                             
Assistant United States Attorney, were on brief for appellee.

                                           
                                                     

                          August 4, 1995
                                           
                                                     


          CYR, Circuit Judge.   Appellant Geronimo  Pizarro-Cald-
                    CYR, Circuit Judge.
                                      

eron  ("Pizarro")  contends  that  the district  court  erred  in

refusing  to  suppress six  block-like  articles     packaged  in

opaque  beige and  brown  tape     which  ultimately led  to  his

conviction for  possessing cocaine  with intent to  distribute in

violation of 21 U.S.C.   841(a)(1) (1993).  We reverse.  

                                I
                                          I

                            BACKGROUND
                                      BACKGROUND
                                                

          The  district court adopted the findings recommended by

the magistrate judge who  conducted the suppression hearing.   On

January  8,  1993, Security  Officer  Gladys  Martinez del  Valle

("Martinez") was screening passengers and monitoring their carry-

on luggage for weapons and explosives at a security checkpoint in

the Isla  Verde Airport terminal.  See  14 C.F.R.   107.20 (1995)
                                                

(Federal Aeronautics Administration ("FAA")  regulation mandating

screening requirements for  carry-on luggage),    107.21 (banning

unauthorized possession  of any "explosive, incendiary, or deadly

or  dangerous weapons"  beyond airport  checkpoints).   Prominent

signs forewarned  passengers, in English and  Spanish, that their

persons and carry-on luggage were subject to screening and search

for weapons and  explosives.  Security screeners normally  use x-

ray machines  to scan all  carry-on luggage; metal  detectors and

hand scanners to screen passengers.  

          While  tending the  x-ray monitor,  Martinez  noticed a

carry-on  bag containing an unidentifiable dark  object.  She had

been  trained  to regard  such  dense,  nonreflective objects  as

                                2


possible camouflage for weapons  or explosives.  Upon questioning

by  Martinez,  appellant Pizarro  stated  that  the carry-on  bag

belonged  to him, and the nonreflective  objects inside were gift

boxes  containing  "figurines."    Concerned  that the  figurines

reflected  no distinguishable  silhouette  on the  x-ray monitor,

Martinez  asked Pizarro to open  the carry-on bag.   When Pizarro

"sort  of  hesitated,"  United States  Department  of Agriculture

Inspector Jos  Mercado, working beside Martinez, directed Pizarro

to open the carry-on  bag, then summoned a local  law enforcement

officer, Juan Avil s, to the security checkpoint.1  

          Pizarro  opened the  carry-on  bag in  the presence  of

Martinez, Officer Avil s, and  Inspector Mercado, revealing a box

wrapped  in Christmas paper.  The box  contained a layer of sani-

tary napkins, a layer of dark blue paper and, finally, six blocks

wrapped  in opaque beige and brown tape.  A nineteen-year veteran

of the  Puerto Rico Police, Officer  Avil s immediately suspected

that the concealed blocks contained cocaine.  Whereupon he seized

the carry-on bag  and its contents, then  arrested and handcuffed

Pizarro.2  
                    
                              

     1Officer Avil s was  employed by the airport  administration
to  patrol the security checkpoint area  and respond to incidents
encountered by  screeners and inspectors, in  accordance with FAA
regulations  requiring the  presence of  a local  law enforcement
official.  See 14 C.F.R.   107.15.  
                        

     2At about the same time, Martinez noticed another nonreflec-
tive object on the  x-ray monitor, similar to the one observed in
Pizarro's  carry-on bag.  The passenger in line behind Pizarro   
Ariel Figueroa-Cruz    claimed ownership of the second bag, which
was found to contain two Christmas gift boxes similar to  the one
Pizarro had  been  carrying.   Without  opening the  gift  boxes,
Officer Avil s placed Figueroa under arrest, and transported both

                                3


          After  placing Pizarro  in  an  airport  police-station

cell, Avil s contacted the  United States Drug Enforcement Admin-

istration  ("DEA").   Shortly thereafter,  DEA agents  tested the

blocks by  piercing their  opaque wrappings; the  contents tested

positive  for cocaine.  In  due course, Pizarro  was indicted for

possessing six kilograms of cocaine with intent to distribute, in

violation of 21 U.S.C.   841(a)(1), (b)(1)(A).

          Pizarro  moved to  suppress  the test  results and  the

cocaine,  on the  ground  that the  warrantless  searches of  the

carry-on bag and  the containers inside  it (i.e., the  Christmas

box and the blocks enclosed  in intact, opaque wrapping) violated

the  Fourth Amendment  to  the United  States Constitution.   The

government successfully defended the  challenged DEA testing as a

mere continuation of the  administrative search aimed at ensuring

airline security.   See United States v. Pizarro-Calderon, 829 F.
                                                                   

Supp.  511, 515 (D.P.R. 1993).   Following a  jury trial, Pizarro

was convicted and sentenced. 

                                II
                                          II

                            DISCUSSION
                                      DISCUSSION
                                                

          The  government must  demonstrate that  the warrantless

DEA  testing of  the enclosed  blocks  either entailed  no Fourth

Amendment search or came within  some recognized exception to the

warrant requirement.  See, e.g., United States v. Doward, 41 F.3d
                                                                  

                    
                              

suspects to the  airport police  station.  See  United States  v.
                                                                       
Figueroa-Cruz, 822 F. Supp.  853 (D.P.R. 1993); infra note  9 and
                                                               
accompanying text.

                                4


789,  791 (1st  Cir. 1994).3   The  government contends  that the

carry-on bag  initially was  opened and  searched at  the airport

security checkpoint pursuant  to a  lawful administrative  search

for  weapons and explosives.   See, e.g., United  States v. Skip-
                                                                           

with,  482  F.2d  1272,  1277-78 (5th  Cir.  1973)  (holding that
              

inadvertent discovery of evidence  of criminal activity in course

of lawful security search for weapons  at airport checkpoint does

not  violate Fourth  Amendment).   Further,  it argues,  once Pi-

zarro's carry-on bag and the Christmas gift box lawfully had been

opened for security purposes, it was proper to seize and open the

packaged blocks  thereby exposed  to Avil s'  "plain view."   See
                                                                           

Coolidge v. New Hampshire, 403 U.S. 443, 466 (1971).
                                   

          Pizarro  protests  on both  counts.    First, he  says,

carry-on  luggage screenings  must be  confined to  ferreting out

threats to airline security (i.e., weapons and explosives used in

air piracy), whereas the customary presence  of Officer Avil s at

the  security  checkpoint permitted  an  inference  that security

concerns  were  a  mere  subterfuge  for intercepting  contraband

posing no  threat to  airline  security.   Second, even  assuming

probable cause to  seize the suspicious blocks,  a search warrant

was required  before the  intact, opaque packaging  enclosing the

blocks could be pierced to test for cocaine.  
                    
                              

     3The  Fourth  Amendment is  implicated  even though  airport
security  checkpoints are  manned  by nongovernmental  personnel,
since the  FAA  prescribes extensive  administrative  directives.
See United States v. Davis, 482 F.2d 893, 896-97 (9th Cir. 1973);
                                    
see also Air  Transportation Security  Act of 1974,  Pub. L.  No.
                  
93-366,  88 Stat. 415 (1974) (codified as amended at 49 U.S.C.   
1356, 1357, 1371, 1372, 1472, 1516); 14 C.F.R.   108.9.  

                                5


A.   The Searches and Seizure at the Security Checkpoint4 
          A.   The Searches and Seizure at the Security Checkpoint
                                                                  

          Pizarro  argues  that  the warrantless  search  of  the

carry-on  bag violated  his Fourth  Amendment rights,  ab initio,
                                                                          

since the customary presence of Avil s at the checkpoint subvert-

ed an otherwise lawful airline security screening into a warrant-

less general  search for contraband (viz.,  cocaine) unrelated to

airline security.  The district court found that    

          the search was conducted  by a security agent
          at  the airport,  and  that the  local police
          officer  was  summoned  to the  site  of  the
          search  only after the initial X-ray scan did
                                      
          not rule out  the presence of either  weapons
          or explosives in defendant's luggage, requir-
          ing the presence of additional security.

Pizarro-Calderon, 829 F. Supp. at 514 (emphasis added).
                          

          Routine security searches  at airport checkpoints  pass

constitutional muster because the  compelling public interest  in

curbing air  piracy generally outweighs their  limited intrusive-

ness.  See,  e.g., United  States v.  Pulido-Baquerizo, 800  F.2d
                                                                

899,  902 (9th Cir. 1986); cf.  United States v. Ferrer, 999 F.2d
                                                                 

7, 9  (1st Cir.  1993) (upholding  warrantless search  of checked

luggage  on  alternate  ground  of  "abandonment,"  but  faulting

government's  "falling-domino approach,  by which  each intrusion

diminishes  privacy  expectations  enough to  permit  further in-

fringements").   Consequently, all  carry-on luggage can  be sub-
                                            

jected  to initial  x-ray  screening for  weapons and  explosives
                    
                              

     4The factual  findings underlying  a suppression ruling  are
reviewed for clear error.  United States v.  Lewis, 40 F.3d 1325,
                                                            
1332-33 (1st Cir. 1994).   Related rulings of law,  including the
"reasonableness" of a particular warrantless search, are accorded
plenary review.  Id. 
                              

                                6


without offending the Fourth Amendment.  In the event the initial

x-ray  screening is inconclusive as to the presence of weapons or

explosives,  the  luggage  may  be  hand-searched  as  reasonably

required to rule  out their presence.  Pulido-Baquerizo, 800 F.2d
                                                                 

at 902.  

          Other  contraband  inadvertently  discovered  during  a

routine  checkpoint  search for  weapons  and  explosives may  be

seized  and introduced in evidence at trial even though unrelated

to airline security.   See, e.g., Skipwith, 482 F.2d  at 1277-78.
                                                    

On the  other hand, lawful airline security  searches of carry-on

luggage may  not be enlarged  or tailored systemically  to detect

contraband (e.g., narcotics) unrelated to airline security.  See,
                                                                          

e.g., United  States v.  $124,570 U.S.  Currency, 873 F.2d  1240,
                                                          

1243-45  (9th  Cir.  1989) (upholding  suppression  of contraband

unrelated  to  airline  security where  screeners  were  rewarded

monetarily  by law  enforcement  authorities  for detecting  such

contraband in carry-on luggage).  

          As  we conclude  that the  government failed  to demon-

strate  that the  subsequent warrantless  search of  the packaged
                                      

blocks by the DEA satisfied the Fourth Amendment warrant require-

ment,  see infra  Section  II.B, for  present purposes  we simply
                          

assume  arguendo that the carry-on bag and the Christmas box were
                          

subjected to lawful airport administrative searches. 

B.   The Subsequent DEA Searches of the Seized Blocks
          B.   The Subsequent DEA Searches of the Seized Blocks
                                                               

          The district court  upheld the warrantless  penetration

of the opaque packaging enclosing the seized blocks on the ground

                                7


that the DEA tests  were "not . . . search[es] per se" but merely
                                                               

"more thorough  examination[s] of  the objects which  had already

been lawfully  seized."  Pizarro-Calderon,  829 F. Supp.  at 515.
                                                   

We cannot agree.

          The uncontroverted evidence reveals that until the  DEA

agents conducted their field  tests, the opaque packaging enclos-

ing the six blocks  remained intact, precluding any  "plain view"

of  their contents such as  might permit a  warrantless search in

the absence of  exigent circumstances.  See,  e.g., United States
                                                                           

v.  Miller,  769 F.2d  554, 558  (9th  Cir. 1985)  (poking finger
                    

through  plastic bag  containing  white powder,  or cutting  into

opaque  fiberglass  container  inside  plastic  bag,  constitutes

"search" requiring warrant, where both "containers were original-

ly  packed  inside  suitcase").   Thus,  regardless  whether  the

packaged blocks  could have been subjected  to lawful warrantless

search at the security checkpoint, the question with which we are
                                           

presented  is whether a warrant was required before the packaging

enclosing  the blocks could be  pierced once the  blocks had been

seized and removed from the security checkpoint.  The  government
                                                         

neither cites, nor have  we found, any case upholding  a warrant-

less administrative  search for  contraband unrelated to  airline

security  concerns,  absent  exigent  circumstances,  consent,  a

finding of  "virtual certainty," or some  other recognized excep-

tion to the warrant requirement.5 
                    
                              

     5The government  does not contend that  the packaged blocks,
once removed from  the checkpoint area, were subject  to warrant-
less  search  for explosives.   See  Skipwith,  482 F.2d  at 1277
                                                       

                                8


          Although  probable cause,  as well  as exigent  circum-

stances,  may  support the  warrantless  seizure  of an  enclosed
                                                          

opaque  container, see Texas v.  Brown, 460 U.S.  730, 743 (1983)
                                                

(involving  validity of warrantless  seizure of  tied-off balloon
                                                      

containing drugs), the same  probable-cause showing is not neces-
                                     

sarily sufficient to  justify its subsequent  warrantless search.
                                                                          

Id. at 749-51 (Stevens,  J., concurring); United States  v. Chad-
                                                                           

wick, 433  U.S. 1, 13-14 n.8 (1977); Miller, 769 F.2d at 558; cf.
                                                                           
                    
                              

(noting  that  modern  technology  permits  hijacker  to  conceal
plastic  explosives  in container  no  larger  than a  toothpaste
tube).   Moreover, any exigency adequate to support a warrantless
search  for explosives lapsed at  or about the  time of Pizarro's
arrest,  since he obviously would  not be permitted  to remain at
large in  the airport  or to board  an aircraft.   Likewise,  any
finding  of  exigency is  totally  belied  by Aviles'  subjective
belief  that the blocks contained  cocaine and by their unhurried
removal to the police station for DEA field-testing.  
     There is no evidence  or contention that screeners, pursuant
to practice or regulation, customarily open packages of this type
or size to check  for weapons or explosives, notwithstanding  the
                                                                           
prior  arrest of the passenger,  and the seizure  of the carry-on
                                                                           
luggage and its contents,  based on conduct unrelated  to airline
                                  
security.  Cf. Nix v. Williams, 467  U.S. 431, 444 (1984) (noting
                                        
doctrine  of  "inevitable  discovery,"  whereby  "prosecution can
establish by a  preponderance of the evidence that the [evidence]
ultimately  or inevitably  would have  been discovered  by lawful
means" even if unlawful search  had not occurred); United  States
                                                                           
v.  Hernandez-Cano, 808  F.2d 779, 783  (11th Cir.  1987) (noting
                            
testimony  from  party  conducting  lawful search  that  but  for
intervention of unlawful search procedure, she would have contin-
ued search of luggage until she found suspicious package).  
     Finally, the  evidence precluded  a contention that  the DEA
testing  was incident to Pizarro's arrest, see Chimel v. Califor-
                                                                           
nia, 395 U.S. 752 (1969), since the  blocks had been removed from
             
the arrest  scene and from  the presence  of the  arrestee.   See
                                                                           
United States v.  Chadwick, 433  U.S. 1, 15  (1977) (noting  that
                                    
"[e]ven  though .  . . the  issuance of  a warrant  by a judicial
officer  was  reasonably  predictable,  a line  must  be  drawn";
invalidating  foot-locker search  remote in  time and  place from
arrest); United States v. $639,558, 955 F.2d 712 (D.C. Cir. 1992)
                                            
(same). But cf. United States v. Johns, 469 U.S. 478,  483 (1985)
                                                
(finding no comparable contemporaneity requirement  under automo-
bile exception to warrant requirement).

                                9


United States v.  Jacobsen, 466 U.S.  109, 114 (1984)  (upholding
                                    

seizure to prevent loss or  destruction of contraband, but noting

that  "Fourth  Amendment  requires  that [the  police]  obtain  a

warrant before examining  contents of such  a package").6   These

discrete  treatments  stem  from  the  recognition  that  seizure

temporarily deprives the defendant of a possessory interest only,
                                                            

whereas a search entails  an intrusion upon privacy  interests as
                                                             

well.  See  generally Segura v. United States, 468  U.S. 796, 806
                                                       

(1984).  Normally,  therefore, once  an exigency ends,  as by  an

arrest or the seizure  and custodial retention of a  container by

the police, a neutral judicial  officer must authorize any subse-
                                                 

quent search on a  showing of probable  cause.  United States  v.
                                                                       

Soule,  908 F.2d 1032, 1040  (1st Cir. 1990)  (citing Shadwick v.
                                                                        

City of Tampa, 407 U.S. 345, 350 (1972)).
                       

          Although the  government was required to  show that any

warrantless search was  valid under an  exception to the  warrant

requirement, see  Doward,  41  F.3d  at  791;  United  States  v.
                                                                       

Rutkowski, 877 F.2d 139, 141 (1st Cir. 1989), it has not attempt-
                   

ed to  demonstrate that the warrantless piercing  of the packaged

blocks  was either  an integral  part of  the security-checkpoint

search or came within any other exception to the warrant require-

ment.   The  government  instead simply  concludes,  as  did  the

district  court, see Pizarro-Calderon,  829 F. Supp.  at 515, and
                                               

without argumentation or citation to authority, that the warrant-
                    
                              

     6Chadwick has  been overruled  only as to  closed containers
                        
seized from inside an automobile.  See California v. Acevedo, 500
                                                                      
U.S. 565 (1991). 

                                10


less  piercing of the packaged  blocks at the  police station was

simply an  extension of the  hand-search initiated at  the check-

point.  But see supra note  5.  Moreover, the government does not
                               

pretend that the DEA  agents pierced the packaged blocks  for any

purpose  other than to test  for illicit drugs.7   Thus, although
                    
                              

     7The  cases  cited  in  the  magistrate-judge's  report  and
recommendation are inapposite  to the DEA  search in the  present
case.  See Pizarro-Calderon,  829 F. Supp. at 616  (citing United
                                                                           
States  v. Herzbrun, 723 F.2d 773 (11th Cir. 1984); United States
                                                                           
v.  Wehrli, 637 F.2d  408 (5th Cir.  1981); United  States v. De-
                                                                           
Angelo,  584 F.2d  46  (4th Cir.),  cert.  denied, 440  U.S.  935
                                                           
(1978);  United States v. Homburg, 546 F.2d 1350 (9th Cir. 1976);
                                           
United States  v. Williams,  516 F.2d 11  (2d Cir. 1975)).   Even
                                    
assuming that  airport security checkpoint searches are justified
on the ground that the passenger's "implied consent" is irrevoca-
ble,  but see Wayne R. Lafave,  Search and Seizure: A Treatise on
                                                                           
the Fourth Amendment    10.6(c), 10.6(g), at 16-17, 31-33 (2d ed.
                              
1987), thus permitting screeners  to search throughout the carry-
on  bag  and all  closed  containers within  it,  the passenger's
implied  "consent"  nonetheless would  be  limited  to permitting
                                                            
searches  for the purpose  of detecting weapons  and explosives. 
                                                                         
See  Florida v.  Jimeno, 500  U.S. 248,  252 (1991)  (noting that
                                 
warrantless "consent"-based searches are  limited in scope by the
                                                                    
terms of defendant's  consent); see also, e.g.,  Wehrli, 637 F.2d
                                                                 
at  409 (noting that screener's  "task [was] to  insure that Weh-
rli's  bag was devoid of skyjacking weapons," and the search "did
not  range  beyond  an  area reasonably  calculated  to  discover
                                                             
dangers  to air safety") (emphasis  added); DeAngelo, 584 F.2d at
                                                              
47-48 (holding  that passenger impliedly consents  to full search
of luggage, and if  it "should be considered necessary  to assure
the safety of  the travelling public,  [the passenger] should  be
required  to submit  to it  for that purpose")  (emphasis added);
                                                      
Williams,  516  F.2d at  12 (inquiring  into  "the bounds  of any
                                                                   
implied  consent,"  but noting  that bags  of cocaine  were found
alongside  a metal  canister, so  that screener  might reasonably
think white powder was  explosive, rather than cocaine) (emphasis
added). 
     By contrast, Avil s admitted that he delivered the blocks to
the DEA for the  very purpose of  detecting narcotics.  In  these
circumstances     once the focus  of the search  shifted from the
detection of weapons to  the detection of narcotics     a warrant
was required unless the ensuing search came within another recog-
nized exception to  the warrant requirement.   Cf. Jacobsen,  466
                                                                     
U.S. at 118-22 (noting that DEA  did not need a search warrant to
open  a  closed container  to perform  a  field test  on contents
because the  contents  had  already been  disclosed  by  a  prior
                 

                                11


we may affirm the  denial of a  suppression motion on any  ground

supported by the record, see, e.g., Soule, 908 F.2d at 1036 n. 7,
                                                   

the  legal theories relied  on by  the government  have led  to a

dearth of record evidence     not to mention argumentation     to

support such an exercise of discretion.8   
                    
                              

"private party" search of that  container); Herzbrun, 723 F.2d at
                                                              
775  (noting  that  law  enforcement  officials  obtained  search
warrant for  bag after  defendant withdrew from  checkpoint, even
though  their search  followed an  aborted checkpoint  search for
                                                    
weapons  which might  have  uncovered same  evidence (i.e.,  coc-
aine)).

     8Avil s conceded at the  suppression hearing, and the magis-
trate  judge later found, that  the contents of  the blocks could
not have been "known" from their outward appearance.  Thus, given
the undisputed evidence that  the blocks were completely enclosed
in  opaque  packaging which  had to  be  pierced even  for field-
                                                          
testing, the government's unexplicated statement that the cocaine
was in Avil s' "plain view" at the checkpoint must be premised on
something  more illuminating  than  its rose-colored  perception.
Nor  has  the  government  attempted to  argue  that  the outward
appearance  of  the blocks,  or the  context  in which  they were
seized,  so "clearly  announce[d]" the  nature of  their contents
that it  was a "virtual  certainty" that they  contained cocaine.
See  Arkansas v. Sanders, 442  U.S. 753, 764-65  n.13 (1979); see
                                                                           
also Texas,  460 U.S. at  761 (Stevens,  J., concurring);  United
                                                                           
States  v. Corral, 970 F.2d  719, 725 (10th  Cir. 1992) (contents
                           
must be "foregone conclusion").  But see Miller, 769 F.2d at 560-
                                                         
61 (squarely  rejecting prosecution argument that  no warrant was
needed  to search  a  lawfully-seized plastic  bag containing  an
opaque  fiberglass vial  filled with cocaine,  both of  which had
been lawfully seized from defendant's suitcase); United States v.
                                                                        
Donnes, 947  F.2d 1430,  1439 (10th  Cir. 1991)  (adopting Miller
                                                                           
approach); accord United States v. Cardona-Rivera, 904 F.2d 1149,
                                                           
1155 (7th  Cir. 1990); cf.  United States  v. Prandy-Binett,  995
                                                                     
F.2d  1069 (D.C. Cir. 1993) (upholding seizure of package wrapped
                                                        
in opaque duct tape  based on probable cause), cert.  denied, 114
                                                                      
S. Ct. 1196 (1994); United States v. Barrios-Moriera, 872 F.2d 12
                                                              
(2d Cir.) (same), cert. denied, 493 U.S. 953 (1989).  We think it
                                        
would be imprudent  in the  present vacuum either  to embrace  or
reject    for the  first time    a "virtual  certainty" exception
to the warrant requirement.
     Nor has the government suggested that the DEA testing should
be  upheld under the "inventory search"  exception to the warrant
requirement.  Compare,  e.g., Colorado v. Bertine, 479  U.S. 367,
                                                           
371  (1987) (even  closed containers  may be  opened  pursuant to

                                12


          The litigation strategy adopted by the government seems

especially  remarkable considering the  portentous district court

opinion previously  entered in the companion  case, United States
                                                                           

v.  Figueroa-Cruz, 822 F. Supp. 853 (D.P.R. 1993); see supra note
                                                                      

2, wherein the  government elected  not to appeal  from an  order

suppressing virtually identical  evidence seized from  the person

next in  line to  Pizarro at  the security checkpoint.9   In  the

companion  case, the  district court  suppressed the  cocaine Fi-

gueroa  was carrying     in  Christmas gift  packages inside  his
                                                               

luggage     because Avil s had  permitted the DEA  to conduct the

initial  search  at  the  airport police  station  without  first
                 

obtaining a warrant.  Avil s testified that he  arrested Figueroa

based on probable cause  to believe that the gift  boxes, exposed

to  view during  the security-checkpoint  search of  his carry-on

bag, were  so similar to  Pizarro's gift box  that it was  likely

that they too contained blocks of cocaine.  

          The government's attempt  to distinguish the two  cases

misses the  mark.   The carry-on  bags, the gift  boxes, and  the

blocks enclosed  in opaque packaging    all  were discrete closed
                                                     
                    
                              

inventory search exception)  with United States v.  Infante-Ruiz,
                                                                          
13 F.3d 498, 504  (1st Cir. 1994) (to justify  warrantless search
as  inventory  search,  government  must  introduce  evidence  of
"established procedures and standard criteria" governing invento-
ry process).  In  addition to the government's failure  to evince
an established inventory procedure or policy, such a rationale is
effectively  disavowed by Avil s' testimony expressly predicating
the DEA searches on  the need to field-test  the contents of  the
enclosed blocks for cocaine.

     9The  government  apparently  decided to  try  Figueroa-Cruz
separately due  to insufficient  evidence that the  two men  were
traveling in tandem. 

                                13


containers.   Even assuming  the warrantless  checkpoint searches

conducted  on the carry-on bags  and the gift  boxes were lawful,

the government  nevertheless failed to establish  that the subse-

quent warrantless  DEA  penetration of  the  previously  unopened

blocks enclosed  in opaque  packaging came within  any recognized

exception  to  the  warrant  requirement.    Consequently,  their

warrantless search at  the police station     after any  exigency

had ceased    violated the Fourth amendment.

                               III
                                         III

                            CONCLUSION
                                      CONCLUSION
                                                

          As  the government  failed to  shoulder its  burden, by

demonstrating either that its  warrantless searches of the opaque

packaged blocks  were permissible under the  Fourth Amendment, or

that  the admission of the tainted evidence was harmless beyond a

reasonable  doubt, see United States v. Modarressi, 886 F.2d 6, 8
                                                            

(1st Cir. 1989), appellant's conviction must be reversed. 

          The district court judgment is reversed.
                    The district court judgment is reversed.
                                                           

                                14