Amicus Curiae Brief — California v. Ciraolo
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Supreme Court, U-d-
FILED
oct 4 WS
No. 84-1513
——«
In the Supreme Court—
OF THE
United States
OL, JR.
OCTOBER TERM, 1984
THE PEOPLE OF THE STATE OF CALIFORNIA,
Petitioner,
VS.
DANTE CARLO CIRAOLO,
Respondent.
On Writ of Certiorari to the
California Court of Appeals
for the First Appellate District
BRIEF FOR THE AMERICAN CIVIL LIBERTIES UNION
BEST AVAILABLE COPY
AND THE AMERICAN. CIVIL LIBERTIES UNION OF
NORTHERN CALIFORNIA AS AMICI CURIAE IN
SUPPORT OF RESPONDENT
MARGARET C. CROSBY
ALAN L. SCHLOSSER Counsel of Record
EDWARD M. CHEN PuHiLip D. WITTE
American Civil Liberties Union 225 Bush Street
Foundation of Northern Post Office Box 7880
California, Inc. San Francisco, CA 94120
1663 Mission Street, Suite 460 Telephone: (415) 983-1000
San Francisco, CA 94103 Counsel for the American
(415) 621-2493 Civil Liberties Union and
Cuar es S. Sims the American Civil Liberties
American Civil Liberties Union Union of Northern
132 West 43rd Street California, Amici Curiae
New York, NY 10036 in Support of Respondent
(212) 944-9800
PILLSBURY, MADISON & SUTRO
225 Bush Street
Post Office Box 7880
San Francisco, CA 94120
Of Counsel
C. DouGLas FLoyp
JEFFRIES BANKNOTE CO. @ 425 CALIFORNIA ST. @ S.F., CA 94104 @ (415) 951-1300
TABLE OF CONTENTS
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I. Mr. Ciraolo possessed a reasonable expectation of
privacy in his enclosed backyard, which was entitled
to Fourth Amendment protection..............cccccceeeeeees
II. Areas not exposed to public view do not lose Fourth
Amendment protection because of the availability of
technologically enhanced surveillance methods. ........
ee LN RRM TA a EG ee AR es NE RA ee
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TABLE OF AUTHORITIES
Cases
Pageis)
Air Pollution Variance Bd. v. Western
I I ka soc cetnapodeseneseas 6
Berman ¥. New VOrR, S68 US. 41 ccciccec..ccccccscsscsosccsccssess 10
Coolidge v. New Hampshire, 403 U.S. 443.000.0000... 11,15
Dean v. Superior Court, 35 Cal.App.3d 112,
itd disasndidinakcibidcchnsssevescocscccees 11, 13
Fullbright v. United States, 392 F.2d 432,
ce BO | Sn 13
Goldman v. United States, 316 U.S. 129.000.0000. 10
G.M. Leasing Corp. v. United States,
EE ESE SS a 6
Gouled v. United States, 255 U.S. 298........................... 11
Johnson v. United States, 333 U.S. 10.........................004. 4
Katz v. United States, 389 U.S. 347....2, 3, 4,5, 7, 11, 15
i i cceessstiilandl 8
Oliver v. United States, 466 U.S. __.,
cee 3, 6,7, 8,9
Olmsteaa v. United States, 277 U.S. 438.0... 10
Payton v. New York, 445 U:S. 573.0... eeeeeeeeeees 6, 11
People v. Sneed, 32 Cal.App.3d 535, 108
I IE aiiiitinlas din ctclascshscbscctnscusadentesscsevicnevees 11,13
MB a... s cocasesccnsccccencsocconces 5,8
Schneckloth v. Bustamonte, 412 U.S. 218.00... 4
Smith v. Maryland, 442 U.S. 735.............cccessesseeeeees 5,7
State v. Arno, 90 Cal.App.3d 505,
i. a senncnensctononecs 13
State v. Kender, 60 Haw. 301, 588 P.2d 447.000.000.000... 13
United States v. Allen, 675 F.2d 1373,
certiorari denied 454 U.S. 833 ............cccceeeeeees 5, 10, 13
United States v. Carratala,
i ss acsoesnseundensenets 10
United States v. Di Re, 332 U.S. 581..........................000. 8
United States v. Karo, 468 U.S. ___.,
ESS SL 3,12
United States v. Kenaan, 496 F.2d 181.0000... 12
Pageis)
United States v. Kim, 415 F.Supp. 1252...........0... 10, 13
United States v. Knotts, 460 U.S. 276.................000 3,12
United States v. Robinson, 414 U.S. 218 ........... ee. 4
United States v. Taborda, 635 F.2d 131.............. 7, 10, 13
Warden v. Hayden, 387 U.S. 294..............ccccccccccossssssesseee 4
Constitutional Provisions
United States Constitution
POUT FR cain kcbsesdiidccsidinecictininthcidsscese 2, passim
Other Authorities
Amsterdam, Perspectives on the Fourth
Amendment (1974) 58 Minn.L.Rev. 349 ................... 15
| LaFave, Search and Seizure, A Treatise on
the Fourth Amendment (1978) ..............ccccceeeeeeeeeees 9,15
Ringel, Searches & Seizures, Arrests and
Confessions (1985).............06. Sisistitill Mabel cediiehiiadtsdbidedes 15
No. 84-1513
In the Supreme Court
OF THE
United States
OCTOBER TERM, 1984
THE PEOPLE OF THE STATE OF CALIFORNIA,
Petitioner,
VS.
DANTE CARLO CIRAOLO,
Respondent.
On Writ of Certiorari to the
California Court of Appeals
for the First Appellate District
BRIEF FOR THE AMERICAN CIVIL LIBERTIES UNION
AND THE AMERICAN CIVIL LIBERTIES UNION
OF NORTHERN CALIFORNIA AS AMICI CURIAE
IN SUPPORT OF RESPONDENT
INTEREST OF AMICI CURIAE'
This case presents the question whether law enforcement
officers, without probable cause and without a search war-
rant, may conduct aerial! surveillance of the private area
immediately surrounding a home, or “curtilage,” which the
homeowner has protected from public view.
The American Civil Liberties Union (“ACLU”) is a
national, nonprofit organization of persons dedicated to
' Letters from counsel for both parties consenting to the filing of a brief amici
curiae are submitted with this brief.
2
safeguarding civil rights and civil liberties. The American
Civil Liberties Union of Northern California (““ACLU-
NC”) is the regional affiliate of the ACLU. These amici
curiae submit this brief because the argument advanced to
support the activities of the police in this case would, if
accepted, fundamentally alter our historic expectations
that the home and its immediate surroundings are areas in
which people may maintain privacy in their intimate
human relations and affairs. Reversal of the decision of the
California court in this case would destroy an expectation
of privacy which must be protected from intrusive, techno-
logically enhanced, governmental surveillance if the pur-
pose of the Fourth Amendment is to be achieved.
SUMMARY OF ARGUMENT
In Katz v. United States (1967) 389 U.S. 347, 351-352,
the Court set out a framework for resolution of Fourth
Amendment questions, which made clear that what a per-
son seeks to preserve as private may be constitutionally
protected. The principle applies to a person making a call
in a public telephone booth, and should apply with even
greater force to a person enjoying his private backyard.
Both individuals have reasonable expectations of privacy
which the state cannot invade without first obtaining a
search warrant.
In contrast to “open fields,” in which a person has
diminished privacy interests and expectations, curtilage,
the outdoor area immediately surrounding the home, was
considered by the common law to be part of the home itself
for search and seizure purposes. It is an area where inti-
mate and private human activities historically have oc-
curred, and must be permitted to continue to occur, free
from intrusive governmental surveillance, if privacy inter-
ests that lie at the core of our constitutional form of
government are to be preserved. Private activities which
are closely associated with and occur nearby the home
——
3
should not be invaded by inquisitive law enforcement of-
ficers without warrants (Oliver v. United States (1984) 466
US. , 104 S.Ct. 1735, 1741).
Technological advances in the area of surveillance
threaten to undermine the individual’s right to be secure in
his or her home from unreasonable searches. It is true that
matters which a person knowingly exposes to routine public
observation may also be viewed by the police. This Court's
decisions equally recognize that privacy interests in the
home which a person takes reasonable precautions to pro-
tect from public view do not evaporate simply because the
police may invade them by non-physically intrusive
methods of technological surveillance (United States v.
Karo (1984) 468 U.S. , 104 S.Ct. 3296; United States
v. Knotts (1983) 460 U.S. 276). The Fourth Amendment
must not be interpreted so narrowly that the police can
fundamentally alter historically recognized privacy inter-
ests in the curtilage by resorting to innovative surveillance
methods. The warrant requirement and the crucial prob-
able cause standard, both specified by the constitutional
text, are necessary protections to ensure that the general
public is safe from overzealous state intrusions into inti-
mate private matters.
ARGUMENT
I. MR. CIRAOLO POSSESSED A REASONABLE EX-
PECTATION OF PRIVACY IN HIS ENCLOSED BACK-
YARD, WHICH WAS ENTITLED TO FOURTH AMEND-
MENT PROTECTION.
Since Katz v. United States (1967) 389 U.S. 347, the
touchstone of Fourth Amendment analysis has been
whether a person has a “constitutionally protected reason-
able expectation of privacy” (Oliver v. United States
(1984) 466 U.S. ___., 104 S.Ct. 1735, 1740). In Katz, the
Court held that FBI agents had violated the Fourth
Amendment by failing to obtain a search warrant before
4
installing an electronic listening and recording device in a
public telephone booth to obtain evidence against Katz, a
suspected bookmaker. The Court recognized that, because
of the advent of eavesdropping devices, people’s privacy
could be unconstitutionally invaded without the necessity
of a technical trespass (Katz v. United States (1967) 389
U.S. 347, 353; see id. at 362 (Harlan, J., concurring)). The
Court stated that “what [a person] seeks to preserve as
private, even in an area accessible to the public, may be
constitutionally protected” (id. at 351-352). * In his con-
currence in Katz, Justice Harlan stated the standard for
determining whether particular searches violated the
Fourth Amendment as a two-part test: “first that a person
have exhibited an actual (subjective) expectation of priva-
cy and, second, that the expectation be one that society is
prepared to recognize as ‘reasonable’ ” (id. at 361).
In the instant case, there is no question that Mr. Ciraolo
exhibited a subjective expectation of privacy, and that this
expectation was reasonable. He protected his backyard
from outside observation by an exterior fence six feet in
height and by an interior fence rising about 10 feet, which
connected the perimeter fence to the house (Joint Ap-
pendix 11-12, 37-38). This act put the police (and everyone
else) on notice that Mr. Ciraolo had demarcated an area of
privacy. As the Court has stated:
“One of the main rights attaching to property is the right
to exclude others, see W. Blackstone, Commentaries,
Book 2, ch. 1, and one who owns or lawfully possesses or
2 The Katz Court also reiterated the rule that warrantless searches are per se
unreasonable under the Fourth Amendment, subject only to a few specifically
established and well-delineated exceptions (389 U.S. at 357)—none of which
are relevant to the case presently before the Court (e.g., search incident to
arrest (United States v. Robinson (1973) 414 U.S. 218, 235); search associat-
ed with “hot pursuit” (Warden v. Hayden (1967) 387 U.S. 294, 298-299);
search pursuant to consent (Schneckloth v. Bustamonte (1973) 412 US. 218,
222); and search for evidence threatened with removal or destruction (see
Johnson v. United States (1948) 333 U.S. 10, 15)).
10 ee eee ok eaten gona ee
5
controls property will in ail likelihood have a legitimate
expectation of privacy by virtue of this right to exclude”
(Rakas v. lilinois (1978) 439 U.S. 128, 144, n. 12).
The area searched in this case, Mr. Ciraolo’s private
backyard, was subject to a greater expectation of privacy
than the public telephone booth in Katz. A person who
swims in the family pool or sunbathes on the backyard
patio expects to be free to engage ‘n these activities without
being scrutinized from the air (see Brief for Petitioner on
Writ of Certiorari, hereinafter “Br. for Petitioner,” 9
(photograph revealed Mr. Ciraolo’s yard, family swimming
pool, patio and sun umbrella)).
It would be preposterous to assert that Mr. Ciraolo
surrendered his expectation of privacy by failing to prevent
a specially chartered police surveillance plane from in-
specting his property. Under the Fourth Amendment, sure-
ly a person should not be required to erect a roof or canopy
blocking the air and the light of the sun to preserve a
privacy interest in his own backyard.’ A person need only
take “normal! precautions to maintain his privacy—that is,
precautions customarily taken by those seeking privacy”
(Rakas v. Illinois, supra, 439 U.S. at 152 (Powell, J.,
concurring)). In Katz, for example, the individual had only
to close the glass door of the telephone booth behind him
(Katz v. United States, supra, 489 U.S. at 352). '
5 See United States v. Allen (9 Cir. 1980) 675 F.2d 1373, 1380. certiorari
denied (1981) 454 U.S. 833 (“{A] person need not construct an opaque
bubble over his or her land in order to have a reasonable expectation of
privacy * * *.”).
‘ Even if Mr. Ciraolo were aware that his neighborhood was subject to air
surveiilance, his Fourth Amendment protections would not disappear. Con-
tinued violations should not be allowed to justify themselves. Along the same
lines, the Court in Smith vy. Maryland (1978) 441 U.S. 735, 740-741, n. 5,
proposed a hypothetical in which the government suddenly announces on
nationwide television that all homes would henceforth be subject to warrant-
less entries. Expectations of privacy would be destroyed, but not reasonably,
and the Fourth Amendment would still be violated.
6
In its recent decision in Oliver v. United States (1984)
466 U.S. ___, 104 S.Ct. 1735, this Court, while not
resolving the question presented here (see id. at 1742, n.
11), sharply distinguished between the reasonability of an
individual’s historically recognized privacy interest in the
“curtilage,” or area immediately surrounding the home,
and an “open field.” Sustaining the search of “open fields”
in that case, the Court noted that several factors determine
whether a privacy interest is entitled to Fourth Amend-
ment protection, including the intention of the Framers,
the uses for which a particular location is customarily
employed and “our societal understanding that certain
areas deserve the most scrupulous protection from govern-
ment invasion * * *” (id. at 1741). In light of these factors,
it concluded that “an individual may not legitimately de-
mand privacy for activities conducted out of doors in fields,
except in the area immediately surrounding the home”
(ibid.) (emphasis added). The Fourth Amendment
“reflects the recognition of the Founders that certain en-
claves should be free from arbitrary government interfer-
ence,” particularly the “sanctity of the home” (ibid.).
Further,
“the common law distinguished ‘open fields’ from the
‘curtilage,’ the land immediately surrounding and as-
sociated with the home. * * * At common law, the
curtilage is the area to which extends the intimate activi-
ty associated with the ‘sanctity of a man’s home and the
privacies of life, * * * and therefore has been considered
part of home itself for Fourth Amendment purposes”
(id. at 1742) (emphasis added). °
5 The Court cited with approval lower court decisions which enforced Fourth
Amendment protections in the area immediately adjacent to the home (104
S.Ct. at 1742), See also Payton v. New York (1979) 445 U.S. 537, 587,
quoting G.M. Leasing Corp. v. United States (1976) 429 U.S. 338, 354
(distinguishing between a warrantless seizure in open area and on private
premises); Air Pollution Variance Bd. v. Western Alfalfa (1974) 416 US.
(footnote continued on next page)
~ ee
7
The State’s arguments to the contrary rest on funda-
mental misconceptions repeatedly rejected by this Court’s
decisions. Primarily, the State argues that the historical
protection of the curtilage extends only to “warrantless
physical intrusions” (Br. for Petitioner 12; see id. at 20-
21), despite this Court’s repeated holdings that a physical
trespass is neither necessary (see, e.g., Katz v. United
States, supra, 389 U.S. 347, 353) nor sufficient (Oliver v.
United States, supra, 104 S.Ct. 1735) to establish a Fourth
Amendment violation.
Similarly, the State asserts that Mr. Ciraolo’s subjective
expectation was that the police would not discover his
contraband, and concludes that such an expectation is
unreasonable (Br. for Petitioner 16-21). Under this anal-
ysis, Katz would not have been protected by the Fourth
Amendment since his subjective expectation was that the
FBI agents would not overhear his telephone conversation.
The correct approach is to focus on expectations of privacy
which people generally have in their homes and backyards
(or, in Katz, the telephone booth), rather than solely on
suspected unlawful activity occurring there. What is criti-
cal is that a person has sought “to preserve [something] as
private” (Smith v. Maryland (1978) 442 U.S. 735, 740,
quoting Katz v. United States, supra, 389 U.S. at 351). As
one court stated:
“We take this first factor to mean in essence that the
defendant must have acted in such a way that it would
have been reasonable for him to expect that he would not
be observed” (United States v. Taborda (2 Cir. 1980)
635 F.2d 131, 137).
In Katz, for example, the defendant occupied a telephone
booth, shut the door and paid the toll (389 U.S. at 352). In
(footnote continued from previous page)
861, 865 (Fourth Amendment protections do not extend to sights seen in open
fields).
8
the present case, Mr. Ciraolo erected high fences around
his backyard. °
The State also misinterprets the requirement that the
expectation of privacy must be reasonable. The question is
not whether a person should be allowed to engage in illegal
activities or possess contraband (see Br. for Petitioner 22-
23). An illegal search is not made legal by the evidence it
uncovers (United States v. Di Re (1948) 332 U.S. 581,
595). A warrantless search normally is unconstitutional
even if contraband is found. The safeguards of the Fourth
Amendment protect all individuals, known or suspected
offenders as well as innocent people (Ker v. California
(1963) 374 U.S. 23, 33). The controlling question is
whether the police’s intrusion infringed upon the personal
and societal values protected by the Fourth Amendment
(Oliver v. United States, supra, 104 S.Ct. at 1743). As the
Court has stated:
“Legitimation of expectations of privacy by law must
have a source outside of the Fourth Amendment, either
bv reference to concepts of real or personal property law
or to understandings that are recognized and perinitted
' by society” (Rakas v. /ilinois, supra, 439 U.S. ai 144, n.
12).
Here, the expectation of privacy in a fenced-in backyard
has been recognized for centuries by Anglo-American com-
mon law and is supported by clear understandings
recognized by society. That expectation is surely reason-
able for Fourth Amendment purposes.
® There is no support in the record for the suggestion made in the brief for the
Criminal Justice Legal Foundation (hereinafter “Br. for Legal Foundation”)
that Mr. Ciraolo’s backyard was in a regular flight path or subject to routine
overflight by commercial aircraft. In any event, the slight probability of
overflight by and unintended observation from such aircraft presents virtually
no threat to legitimate privacy interests and expectations, in marked contrast
to focused surveillance from 2 low-flying, specially chartered police airplane,
as in this case.
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9
The briefs submitted by petitioner and amicus curiae
Criminal Justice Legal Foundation contend that activities
that take place in a fenced-in residential backyard without
an opaque dome over it are activities “open to view” (Br.
for Petitioner 14), “obvious and patent” (id. at 25) and
“exposed to everyone” (id. at 33). The Legal Foundation
takes this premise to its illogical conclusion with the inven-
tion of a new exception to Fourth Amendment require-
ments: an alleged “open skies” exception (Br. for Legal
Foundation 14).
In essence, the Legal Foundation argues that the validity
of the search depends, not on the privacy associated with
the home and immediately surrounding areas, but on the
physical position of the police in surveilling those histori-
cally protected places (Br. for Legal Foundation 14). These
arguments are not only foreign to Fourth Amendment
doctrine but repugnant to society’s expectations of what is
private and what is not. They erroneously shift the focus of
analysis from the reasonability of privacy expectations as-
sociated with a particular area to the location or means
from or by which surveillance may be conducted. In this
society, people do not normally expect their neighbors or
the general public to surveil their backyards from an air-
plane. Uncritical use of labels like the “open skies” must
not be allowed to destroy this expectation. ‘ The “open
field” doctrine refers to the area searched, not the location
of the searchers (Oliver v. United States, supra, 104 S.Ct.
at 1741-1742). Professor LaFave agrees that this is the
proper analysis (1 LaFave, Search and Seizure, A Treatise
on the Fourth Amendment (1978) §§2.2 and 2.3 & Supp.
(1985)).
7 Of course, if a person’s backyard abuts a hill or a high-rise building, that
individual must recognize that these physical factors limit privacy, and the
individual should conduct backyard activities, such as sunbathing,
accordingly.
10
The fundamental issue presented by this case is whether
the historic privacy interest enjoyed by ail persons in their
homes and immediately surrounding areas will be
destroyed by exposure to extraordinary police surveillance
because of the possibility that illegal activity may occasion-
ally be discovered. The impairment of reasonable privacy
interests and attendant freedom from governmental intru-
sions that such a course would entail compels its rejection.
Il. AREAS NOT EXPOSED TO PUBLIC VIEW DO NOT
LOSE FOURTH AMENDMENT PROTECTION BE-
CAUSE OF THE AVAILABILITY OF TECHNOLOGI-
CALLY ENHANCED SURVEILLANCE METHODS.
The implications of the present case are far-reaching. As
early as 1928, Justice Brandeis warned, “The progress of
science in furnishing the Government with means of espio-
nage is not likely to stop with wire-tapping” (Olmstead v.
United States (1928) 277 U.S. 438, 474 (dissenting opin-
ion)). “ In 1967, the Court recognized that “|t]he law,
though jealous of individual privacy, has not kept pace with
these advances in scientific knowledge” (Berger v. New
York (1967) 388 U.S. 41, 49).
- It is not being alarmist to recognize that police use of
high- technology surveillance techniques poses a significant
threat to Fourth Amendment protections. Police have at
their disposal not only bugging devices, but thermal imag-
ing systems for night surveillance,’ high-powered optical
equipment,”’ seismic sensors," ultraviolet particle detec-
® Justice Murphy similarly commented that “the search of one’s home or office
no longer requires physical entry, for science has brought forth more effective
devices for the invasion of a person’s privacy * * *” (Goldman v. United
States (1942) 316 U.S. 129, 139 (dissenting opinion)).
* United States v. Carratala (S.D.Fla.) No. 83-393-Cr-SMA(s).
10 See, e.g., United States v. Taborda (2 Cir. 1980) 635 F.2d 131; United
States v. Kim (1976) 415 F.Supp. 1252.
1! United States v. Allen (9 Cir. 1980) 675 F.2d 1373, certiorari denied (1981)
454 US. 8°
1]
tors’ and a variety of surveillance aircraft.’ The federal
government has available to it much more sophisticated
technological innovations, including high-flying reconnais-
sance jets and spy satellites. In the technological age of law
enforcement, when abuse of power can damage lives as well
as render privacy impossible, the Court must interpret the
Fourth Amendment as it applies to novel surveillance
methods to preserve its original purpose (see Payton v. New
York (1979) 445 U.S. 573, 591, n. 33). ™
Katz v. United States (1967) 389 U.S. 347 illustrates
this Court’s willingness to adapt its interpretation of the
Fourth Amendment to meet new threats to privacy inter-
ests posed by technology. By shifting the focus from the
protection of places to the protection of people, the Court
recognized that an individual’s privacy can be invaded
through an electronic device without the person even know-
ing it. Aerial searches of a person’s enclosed backyard pose
dangers to legitimate privacy interest as serious as and
precisely analogous to those posed by the bugging invali-
dated in Katz.
‘2 United States v. Kenaan (1 Cir. 1974) 496 F.2d 181.
'3 See, e.g., Dean v. Superior Court (1973) 35 Cal.App.3d 112, 110 Cal.Rptr.
585 (airplane); People v. Sneed (1973) 32 Cal.App.3d 535, 108 Cal.Rptr.
146 (helicopter).
‘4 Claims of police efficiency must not be allowed to be used as a pretext for
eroding Fourth Amendment protections. In a discussion of the warrant
requirement, the Court stated in Coolidge v. New Hampshire (1971) 403
U.S. 443, 481:
“It is not an inconvenience to be somehow ‘weighed’ against the claims of
police efficiency. It is, or should be, an importaht working part of our
machirery of government, operating as a matter of course to check the
‘well-intentioned but mistakenly over-zealous executive officers’ [Gouled
v. United States (1921) 255 U.S. 298, 304] who are a part of any system
of law enforcement.”
Although the Legal Found-tion argues that aerial searches are necessary to
locate small gardens in rural areas (Br. for Legal Foundation 22), Mr.
Ciraolo and his family do not live in some isolated, impenetrable location,
but in an urban area. This fact hints at the potential for abuse if warrantless
aerial searches are permitted on the grounds that no other method of law
enforcement is adequate.
12
In light of these technological developments, which ex-
pose the most intimate details of everyday living to inten-
sive government surveillance without the necessity of physi-
cal trespass, this Court has recognized that the focus of
Fourth Amendment analysis must be on a person’s reason-
able expectation of privacy in the area to be protected,
rather than on the means which the government may em-
ploy to invade that privacy. In United States v. Karo
(1984) 468 U.S. ___., 104 S.Ct. 3296, the Court held that
the warrantless monitoring of an electronic beeper in a
private residence violated the Fourth Amendment. Since
the government obtained information that could not have
been obtained by observation by members of the general
public from outside the curtilage of the house, reasonable
expectations of privacy were infringed just as if a govern-
ment agent had entered the house without a warrant to
search for the object sought.
“Indiscriminate monitoring of property that has been
withdrawn from public view would present far too seri-
Ous a threat to privacy interests in the home to escape
entirely some sort of Fourth Amendment oversight” (id.
at 3304).
Similarly, in the instant case, Mr. Ciraolo’s backyard had
been fenced from public view. It was only by means of a
specially chartered airplane flying at a low level that the
government was able to intrude into the privacy of the
curtilage.
In contrast, in United States v. Knotts (1983) 460 US.
276, the Court held that no violation occurred in the
monitoring of a beeper as it traveled in a car and arrived in
the area of a cabin. The critical factor distinguishing Karo
was that in Knotts, the beeper’s route could have been
observed by police or any member of the public stationed
along the way or following the suspect’s car on the public
highway (460 U.S. at 282, 285). “A person traveling in an
13
automobile on public thoroughfares has no reasonable ex-
pectations of privacy in his movements from one place to
another” (id. at 281). Thus, in Knotts, the information
obtained was “voluntarily conveyed to anyone who wanted
to look” (ic. .) (emphasis added). In such circumstances,
use of a beeper to assist the observation did not alter the
Fourth Amendment analysis. In contrast, in the present
case, as in Karo, the object of the police search was not
available to anyone who wanted to look, and was entitled to
Fourth Amendment protection against invasive surveil-
lance by a low-flying, specially chartered police aircraft.
The same analysis exposes the fallacy of the State’s
contention that the search in this case was analogous to
police observation from a nearby hill or from the window of
an apartment (Br. for Petitioner 19, 24-25). Although
some courts have invalidated such searches (e.g., United
States v. Kim (D.Haw. 1976) 415 F.Supp. 1252; State v.
Arno (1979) 90 Cal.App.3d 505, 153 Cal.Rptr. 624), they
raise a much different question than the instant case. In
such circumstances, a person’s property is by hypothesis
exposed to routine observation from locations which are
accessible to members of the general public. A person who
‘9 Many decisions have invalidated aerial searches and less intrusive warrant-
less surveillance involving technologically enhanced viewing where the place
searched was one to which (unlike an open field) a reasonable expectation of
privacy adhered. See, e.g., United States v. Taborda (2 Cir. 1980) 635 F.2d
131 (telescopic surveillance of interior of residence); United States v. Kim
(D.Haw. 1976) 415 F.Supp. 1252 (search into apartment using high-
powered telescope); People v. Sneed (1973) 32 Cal.App.3d 535, 108
Cal.Rptr. 146 (low-altitude helicopter search of private property); State v
Kender (1979) 60 Haw. 301, 588 P.2d 447 (telescopic search of backyard).
Decisions sustaining searches in similar circumstances have generally in-
volved situations in which the area was routinely exposed to public observa-
tion, was not protected from public view or was not closely associated with
the home (United States v. Allen (9 Cir. 1980) 675 F.2d 1373, certiorari
denied (1981) 454 U.S. 833 (helicopter search of property bordering federal
land routinely traversed by Coast Guard helicopters); Fullbright v. United
States (10 Cir. 1968) 392 F.2d 432, certiorari denied (1968) 393 U.S. 830
(search of open shed using binoculars); Dean v. Superior Court (1973) 35
Cal.App.3d 112, 110 Cal.Rptr. 585 (aerial search of unfenced three-quarter-
acre field)).
14
knowingly exposes his activities to routine public observa-
tion is not entitled to prevent the police from also looking.
In contrast, this case involved a setting in which routine
observation by the general public could neither reasonably
be anticipated nor guarded against. Here, the police used
invasive modern technology to conduct surveillance of pri-
vate areas that would not ordinarily be observable by
members of the public. *
Warrantless aerial surveillance, in ways different from
other methods of technologically aided surveillance, invites
abuse. Everything on the ground that is not covered with
blackout cloth is in open view. The homes and yards of
suspected offenders and wholly innocent people alike are
necessarily surveilled. Aerial searches are, in effect,
dragnets. Legitimizing them would alter society’s very con-
cept of privacy. If this Court were to announce a rule that
homeowners’ privacy expectations are now curtailed by
police surveillance from the air, the impact of this ruling
would extend beyond the curtilage. Once one accepts peti-
tioner’s premise that the “airways” are “an open place”
where the police must be expected to be, then private
activities on a sundeck or viewed through a skylight or
picture window would be as open to police surveillance as
activities in the backyard. As one commentator has
observed: |
“[A]nyone can protect himself against surveillance by
retiring to the cellar, cloaking all the windows with thick
caulking, turning off the lights and remaining absolutely
quiet. This much withdrawal is not required in order to
claim the benefit of the amendment because, if it were,
the amendment’s benefit would be too stingy to preserve
the kind of open society to which we are committed and
'6 The State acknowledges that it would have been improper to scale the fence
in this case to observe what was within the yard (Br. for Petitioner 20-21).
The rationale which would legitimize an equivalent or greater invasion of
privacy from an airplane or hovering helicopter is difficult to discern.
15
in which the amendment is supposed to function. What
kind of society is that?” (1 LaFave, Search and Seizure,
A Treatise on the Fourth Amendment (1978) §2.2 at
261, quoting with approval Amsterdam, Perspectives on
the Fourth Amendment (1974) 58 Minn.L.Rev. 349,
402). “
In sum, what a person “knowingly exposes to the public”
(Katz v. United States, supra, 489 U.S. at 351) is accorded
no Fourth Amendment protection. But a historically pri-
vate area which a person takes reasonable precautions to
guard from public view does not lose its constitutional
protection by virtue of the failure to take extraordinary
steps to guard against unusual police surveillance made
possible solely by modern technology. To require extraordi-
nary precautions to prevent such observations would funda-
mentally alter the protection of the Fourth Amendment as
we now understand it. The Fourth Amendment must not be
jettisoned because of crime statistics. As this Court stated
in Coolidge v. New Hampshire, supra, 403 U.S. at 455:
“In times of unrest, whether caused by crime or racial
conflict or fear of internal subversion, this basic law and
the values it represents may appear unrealistic or ‘ex-
travagant’ to some. But the values were those of the
authors of our fundamental constitutional concepts.”
‘7 To the same purpose, Ringel comments:
“It would be meaningless to say that people have a right to be free from
unreasonable searches if the right depends on making observation by out-
siders impossible, particularly in light of the sophisticated techniques of
surveillance available today” (Ringel, Searches & Seizures, Arrests and
Confessions (1985) §8.1 at 8-3).
16
CONCLUSION
For the foregoing reasons, the judgment of the
California Court of Appeals should be affirmed.
Respectfully submitted,
MARGARET C. CROSBY C. DouGLas FLoyp
ALAN L. SCHLOSSER Counsel of Record
EDWARD M. CHEN PHiuip D. WITTE
American Civil Liberties Union 225 Bush Street
Foundation of Northern Post Office Box 7880
California, Inc. San Francisco, CA 94120
1663 Mission Street, Suite 460 Telephone: (415) 983-1000
San Francisco, CA 94103 Counsel for the American
Telephone: (415) 621-2493 Civil Liberties Union and the
CHARLES S. SIMs American Civil Liberties
American Civil Liberties Union Union of Northern California,
132 West 43rd Street Amici Curiae in support of
New York, NY 10036 Respondent
Telephone: (212) 944-9800
PILLSBURY, MADISON & SUTRO
225 Bush Street
Post Office Box 7880
San Francisco, CA 94120
- Of Counsel
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