Opposition Brief — Eric Tyrell Johnson, Petitioner v. United States
Supreme Court briefMar 4, 2026
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No. 25-774
In the Supreme Court of the United States
ERIC TYRELL JOHNSON, PETITIONER
v.
UNITED STATES OF AMERICA
ON PETITION FOR A WRIT OF CERTIORARI
TO THE UNITED STATES COURT OF APPEALS
FOR THE FOURTH CIRCUIT
BRIEF FOR THE UNITED STATES IN OPPOSITION
D. JOHN SAUER
Solicitor General
Counsel of Record
A. TYSEN DUVA
Assistant Attorney General
CELIA CHOY
Attorney
Department of Justice
Washington, D.C. 20530-0001
SupremeCtBriefs@usdoj.gov
(202) 514-2217
QUESTION PRESENTED
Whether law-enforcement officers conducted an unreasonable search in violation of the Fourth Amendment
when they brought a drug-detection dog to the common
hallway outside the door of petitioner’s apartment.
(I)
ADDITIONAL RELATED PROCEEDINGS
United States Court of Appeals (4th Cir.):
United States v. Coleman-Fuller, No. 23-4237 (Jan.
15, 2025)
United States v. Spruill, No. 23-4289 (Aug. 24, 2023)
(II)
TABLE OF CONTENTS
Page
Opinions below ................................................................................ 1
Jurisdiction ...................................................................................... 1
Statement ......................................................................................... 2
Argument ....................................................................................... 10
Conclusion ...................................................................................... 22
TABLE OF AUTHORITIES
Cases:
City of Indianapolis v. Edmond, 531 U.S. 32 (2000) ......... 11
Collins v. Virginia, 584 U.S. 586 (2018) ......................... 15, 16
Dandridge v. Williams, 397 U.S. 471 (1970) ....................... 18
Davis v. United States, 564 U.S. 229 (2011) .................. 19, 20
Fitzgerald v. State, 864 A.2d 1006 (Md. 2004) ..................... 20
Florida v. Jardines, 569 U.S. 1 (2013) ............................ 13, 14
Graver Tank & Mfg. Co. v. Linde Air Prods. Co.,
336 U.S. 271 (1949) ............................................................... 18
Herb v. Pitcairn, 324 U.S. 117 (1945) ................................... 18
Herring v. United States, 555 U.S. 135 (2009) .................... 19
Hudson v. Michigan, 547 U.S. 586 (2006)............................ 19
Illinois v. Caballes, 543 U.S. 405 (2005) ............... 9, 11, 12, 14
Kyles v. Whitley, 514 U.S. 419 (1995) ................................... 18
Kyllo v. United States, 533 U.S. 27 (2001) ................. 8, 12, 14
Lewis v. United States, 143 S. Ct. 2499 (2023) .................... 10
Lindsey v. State, 127 A.3d 627 (Md. Ct. Spec. App.
2015), cert. denied, 135 A.3d 417 (Md. 2016) ..................... 20
Makell v. United States, 586 U.S. 1051 (2018) .................... 10
People v. Bonilla, 120 N.E.3d 930 (Ill. 2018),
cert. denied, 589 U.S. 916 (2019) ................................... 17
State v. Rendon, 477 S.W.3d 805
(Tex. Crim. App. 2015) ................................................... 17
(III)
IV
Cases—Continued:
Page
Supervisors v. Stanley, 105 U.S. 305 (1882) ........................ 18
United States v. Calandra, 414 U.S. 338 (1974) .................. 19
United States v. Dunn, 480 U.S. 294 (1987) .................... 9, 15
United States v. Jacobsen, 466 U.S. 109 (1984) ............. 11, 13
United States v. Johnston, 268 U.S. 220 (1925) .................. 18
United States v. Karo, 468 U.S. 705 (1984) .................... 21, 22
United States v. Legall, 585 Fed. Appx. 4
(4th Cir. 2014), cert. denied, 574 U.S. 1183 (2015) ............. 8
United States v. Leon, 468 U.S. 897 (1984) .......................... 19
United States v. Lewis, 38 F.4th 527 (2022),
cert. denied, 143 S. Ct. 2499 (2023) ............................... 17
United States v. Makell, 721 Fed. Appx. 307
(4th Cir.), cert. denied, 586 U.S. 1051 (2018) .................... 20
United States v. McKenzie, 13 F.4th 223 (2021),
cert. denied, 142 S. Ct. 2766 (2022) ............................... 16
United States v. Place, 462 U.S. 696 (1983) ..................... 9, 11
United States v. Thomas, 757 F.2d 1359
(2d Cir. 1985), cert. denied, 474 U.S. 819 (1985),
and 479 U.S. 818 (1986) .................................................. 16
United States v. Whitaker,
820 F.3d 849(7th Cir. 2016) ............................................ 16
Constitution, statutes, and rule:
U.S. Const. Amend. IV ........................................... 8, 11, 13, 20
18 U.S.C. 922(g)(1)................................................................. 2, 7
18 U.S.C. 924(a)(2) (2018) ......................................................... 2
18 U.S.C. 924(e)(1) ..................................................................... 7
21 U.S.C. 841(a)(1) ................................................................. 2, 7
21 U.S.C. 841(b)(1)(B)(i) ....................................................... 2, 7
21 U.S.C. 841(b)(1)(B)(vi) (2018) ......................................... 2, 7
Sup. Ct. R. 10 ........................................................................... 18
In the Supreme Court of the United States
No. 25-774
ERIC TYRELL JOHNSON, PETITIONER
v.
UNITED STATES OF AMERICA
ON PETITION FOR A WRIT OF CERTIORARI
TO THE UNITED STATES COURT OF APPEALS
FOR THE FOURTH CIRCUIT
BRIEF FOR THE UNITED STATES IN OPPOSITION
OPINIONS BELOW
The opinion of the court of appeals (Pet. App. 1a-17a)
is reported at 148 F.4th 287. The memorandum opinion of
the district court (Pet. App. 18a-60a) is available at 2022
WL 2484143. A subsequent memorandum opinion of the
district court is available at 2022 WL 2789093.
JURISDICTION
The judgment of the court of appeals was entered on
August 5, 2025. On October 22, 2025, the Chief Justice
extended the time within which to file a petition for a
writ of certiorari to and including January 2, 2026. The
petition for a writ of certiorari was filed on December
31, 2025. This Court’s jurisdiction is invoked under 28
U.S.C. 1254(1).
(1)
2
STATEMENT
Following a jury trial in the United States District
Court for the District of Maryland, petitioner was convicted of conspiring to distribute and possess with intent
to distribute heroin and fentanyl, in violation of 21 U.S.C.
841(b)(1)(B)(i) and 21 U.S.C. 841(b)(1)(B)(vi) (2018); possessing controlled substances with intent to distribute, in
violation of 21 U.S.C. 841(a)(1) and (b)(1)(B)(i) and 21
U.S.C. 841(b)(1)(B)(vi) (2018); and possessing a firearm
and ammunition following a felony conviction, in violation of 18 U.S.C. 922(g)(1) and 18 U.S.C. 924(a)(2) (2018).
Am. Judgment 1. The district court sentenced him to 150
months of imprisonment, to be followed by five years of
supervised release. Id. at 2-3. The court of appeals affirmed. Pet. App. 1a-17a.
1. a. In 2019, a Washington County, Maryland narcotics task force, working with the Drug Enforcement
Administration, was investigating a drug-trafficking organization suspected of selling fentanyl and heroin in
Maryland and West Virginia. Pet. App. 3a. Through use
of wiretaps, physical surveillance, and other investigative techniques, the task force officers came to suspect
that petitioner was distributing drugs from Apartment
201 in Greenwich Place, a large apartment complex in
Owings Mills, Maryland. Id. at 3a, 91a-104a.
The lead investigator, Agent Jasen Logsdon of the
Washington County Sheriff ’s Department, decided to
conduct a dog sniff from outside petitioner’s apartment
door. Pet. App. 3a. Agent Logsdon received permission
from the building’s management to access the building’s
common areas for that purpose. C.A. App. 364. On August 7, 2019, at approximately 3 a.m., using a passcode
or swipe card provided by the building’s management,
Agent Logsdon entered the building, accompanied by
3
Detective George Vigue and his canine partner, Cody.
Pet. App. 3a; C.A. App. 365.
The Greenwich Place complex was “very large,” with
“well over 100 separate apartments” located on “multiple floors.” C.A. App. 362-363. Apartment 201 was located on the second floor of the building, on a long hallway with numerous units. Pet. App. 3a; C.A. App. 365.
Because it was the closest apartment to the common elevator and stairwell, other tenants and their visitors
routinely walked past it on their way to and from other
units. Pet. App. 4a; C.A. App. 373. The door was recessed
from the hallway by approximately three and a half feet
and flanked on both sides by storage or utility closets.
Pet. App. 4a; C.A. App. 372-374. At the time of the investigators’ visit, there were no personal possessions in
front of or around the door to Apartment 201. Pet. App.
4a, 79a-80a; C.A. App. 369.
Upon arriving in the second-floor hallway, Agent
Logsdon directed Detective Vigue to the general area
in which to perform the canine sniff. C.A. App. 365-367.
After being deployed by Detective Vigue, Cody conducted a “free air scan” (i.e., a scan not directed to a
particular spot) and gave a positive alert for the odor of
controlled substances emanating from the lower door
seam of Apartment 201. Id. at 366; see id. at 397; Pet.
App. 4a.
b. The next day, a task force officer applied to a Maryland state judge for a warrant to search Apartment 201.
Pet. App. 4a. The affidavit in support of the warrant set
forth the basis for probable cause to believe that petitioner was distributing drugs from Apartment 201 in
Greenwich Place. Id. at 78a-113a.
As recounted in the affidavit, by June 2019, investigators had identified an individual named Philander Spruill
4
as the leader of a local drug trafficking organization and
obtained a court-authorized wiretap for his cellphone.
Pet. App. 87a-91a, 94a. On July 9, 2019, the officers intercepted a call between Spruill and a drug purchaser
in which Spruill indicated that he was on his way to meet
his supplier to purchase a quantity of drugs. Id. at 92a94a. About an hour and a half later, Spruill’s cellphone
pinged in Owings Mills, Maryland, approximately a kilometer from the Greenwich Place apartment complex. Id.
at 94a. Shortly thereafter, Spruill began traveling back
toward his residence in Hagerstown, Maryland. Ibid.;
see id. at 101a.
Later that afternoon, investigators observed Spruill
arrive back at his residence. Pet. App. 94a. About 15 minutes later, they intercepted a call between Spruill and
an individual named Bret Redman regarding Redman
purchasing two grams of heroin or fentanyl from Spruill
at a predetermined location. Id. at 94a-95a. Investigators then observed Spruill leave his residence carrying
a gray Walmart grocery bag and followed him as he
drove away. Id. at 95a. Shortly after Spruill parked at
the location discussed in the intercepted call, Redman
arrived and got into Spruill’s car. Ibid. When Redman
got out of Spruill’s car, he was carrying the gray
Walmart grocery bag, which appeared to be full of clear
plastic bags. Ibid.
As Spruill drove away, Redman crossed the street
and threw the Walmart bag into an open trash container
on the sidewalk. Pet. App. 95a. After Redman left, investigators recovered the Walmart bag and found numerous plastic sandwich bags with cut corners, a large
plastic bag, a foil pack, and two wax papers, all with a
tan powder that they suspected to be fentanyl residue.
Id. at 95a-96a. The investigators believed that those items
5
were consistent with Spruill having purchased a quantity of drugs from his supplier, cut and packaged it for
resale, and then handed the garbage to Redman for disposal. Id. at 96a.
The next day, investigators intercepted a call between
Spruill and an unknown man. Pet. App. 97a. Spruill again
indicated that he was on his way to pick up drugs. Id.
at 97a-98a. Shortly thereafter, a court-authorized GPS
tracking device affixed to Spruill’s car indicated that he
traveled to Owings Mills and parked outside the main
entrance to Greenwich Place. Id. at 98a. The investigators went to Greenwich Place and saw Spruill leave the
building and get into his car, after which he returned to
his residence. Id. at 98a-99a.
The investigators then intercepted a phone call between Spruill and the same unknown man. Pet. App. 99a100a; see id. at 97a. The man indicated that he would take
“two of them”—which investigators knew from experience is common drug terminology for two grams or other
units of illegal drugs—and Spruill responded that the
drugs were “being made as we speak.” Id. at 100a; see id.
at 101a. A mixing sound was audible in the background.
Id. at 100a. Half an hour later, Spruill again called the
man and told him that he could have “the two.” Id. at 101a.
On July 30, 2019, a task force officer monitoring a
surveillance camera at the rear of Spruill’s residence
observed a car pull into the driveway, while Spruill was
home. Pet. App. 101a-102a. An unknown man got out of
the driver’s side of the car and went into Spruill’s residence. Id. at 102a. A short time later, an unknown woman
got out of the passenger’s side of the car and smoked a
cigarette while waiting outside the residence. Ibid. A few
minutes later, the man came out of the residence and got
6
into the car’s passenger seat. Ibid. The woman got into
the driver’s seat and drove away. Ibid.
The officer ran the car’s license plates and found that
it was registered to Latrice Campbell. Pet. App. 102a.
Maryland State Police records showed that the car had
been stopped three times in 2019 and that each time, it
was driven by petitioner. Ibid. The officer compared petitioner’s driver’s-license photograph to the unknown man
captured on the surveillance camera at Spruill’s residence
and determined that it was “possibly” the same person.
Ibid. Investigators then sent a subpoena to the management of Greenwich Place inquiring whether petitioner
or Campbell leased an apartment there. Id. at 103a.
The subpoena response indicated that Campbell was
the lessee of Apartment 201. Pet. App. 103a. On August
4, 2019, a task force officer observed Spruill’s car parked
in a lot in the same business and residential complex as
Greenwich Place. Id. at 103a-104a. Intercepted communications and the court-authorized GPS tracking device on Spruill’s car indicated that Spruill also traveled
to Greenwich Place on July 15, July 24, and August 6,
2019. Id. at 104a.
The affidavit also detailed petitioner’s extensive
criminal history, which included multiple convictions for
drug-related offenses. Pet. App. 88a. And it recited common practices of narcotics traffickers gleaned from the
affiant’s training, experience, and participation in other
drug investigations. For example, the affidavit explained
that “it is common for narcotics traffickers to secrete
contraband, proceeds of narcotics sales and records of
narcotics transactions in secure locations within their residences” and “the residences of relatives and associates
* * * for ready access and to conceal these items from
law enforcement authorities.” Id. at 105a-106a.
7
The affidavit further stated that on August 7, 2019,
Detective Vigue and Cody performed a “free air scan”
of Apartment 201’s “main entry door.” Pet. App. 104a.
Detective Vigue advised that Cody “gave a positive alert
for the odor of a controlled dangerous substance.” Ibid.
c. The Maryland judge issued the warrant, and police
searched Apartment 201 on August 12, 2019. Pet. App.
4a; C.A. App. 125-127. The police recovered “a heroinfentanyl powder mixture, a handgun, ammunition, cell
phones, cash, and other items indicative of drug-dealing.”
Pet. App. 4a.
2. A grand jury in the District of Maryland returned
a third superseding indictment charging petitioner with
conspiring to distribute and possess with intent to distribute heroin and fentanyl, in violation of 21 U.S.C.
841(b)(1)(B)(i) and 21 U.S.C. 841(b)(1)(B)(vi) (2018);
possessing controlled substances with intent to distribute, in violation of 21 U.S.C. 841(a)(1) and (b)(1)(B)(i)
and 21 U.S.C. 841(b)(1)(B)(vi) (2018); and possessing a
firearm and ammunition following a felony conviction,
in violation of 18 U.S.C. 922(g)(1) and 924(e)(1). C.A. App.
52, 55, 58-59.
Petitioner moved to suppress the evidence obtained
from the search of his apartment, arguing that the affidavit contained illegally obtained evidence in the form
of the results of the warrantless dog sniff. D. Ct. Doc.
213-1 (May 27, 2021). The district court held an evidentiary hearing at which it heard testimony from Agent
Logsdon and from a defense investigator hired to measure the recessed area in front of Apartment 201. Pet. App.
54a-56a. The court then denied the suppression motion.
Id. at 54a-59a.
The district court determined that, under the circumstances, the “area just outside [petitioner’s] apartment
8
door is not within the curtilage” of his home. Pet. App.
56a. The court observed that building management granted access to the building’s common areas “routinely
upon request” and that the hallway outside petitioner’s
apartment was accessed regularly by other tenants on
their way to and from their units and daily by the building’s cleaning staff. Ibid. It found that petitioner “had
no property based right outside the apartment door.”
Id. at 58a. And the court explained that because the dog
sniff “ ‘disclosed only the presence of illegal narcotics,’ ”
it did not violate petitioner’s “reasonable expectation of
privacy.” Id. at 58a-59a (quoting United States v. Legall, 585 Fed. Appx. 4, 6 (4th Cir. 2014) (per curiam),
cert. denied, 574 U.S. 1183 (2015)).
A jury found petitioner guilty on all counts. Pet. App.
63a. The district court sentenced him to 150 months of
imprisonment, to be followed by five years of supervised
release. Am. Judgment 2-3.
3. The court of appeals affirmed. Pet. App. 1a-17a.
The court of appeals explained that the dog sniff did
not violate petitioner’s reasonable expectation of privacy.
Like the district court, the court of appeals found that
petitioner’s reliance on Kyllo v. United States, 533 U.S. 27
(2001), which involved officers’ use of a thermal-imaging
device directed at a house, was misplaced. Pet. App. 8a9a. While the court accepted that the Fourth Amendment
generally forbids the government from using “a specialized device ‘not in general public use’ ” to detect details
about the interior of a home that are normally hidden
from view, it found that this Court’s precedent does not
treat dog sniffs as a search. Id. at 8a (quoting Kyllo, 533
U.S. at 40).
Quoting this Court’s decisions, the court of appeals explained that the “interest in possessing contraband cannot
9
be deemed ‘legitimate,’ ” Pet. App. 8a (quoting Illinois
v. Caballes, 543 U.S. 405, 408 (2005)); that a dog sniff
“exposes ‘only the presence or absence of narcotics, a
contraband item,’ ” id. at 9a (quoting United States v.
Place, 462 U.S. 696, 707 (1983)); and that a dog sniff
therefore “cannot violate any reasonable expectation of
privacy.” Ibid. (citing Place, 462 U.S. at 707). And it further explained that this Court’s logic was not tied to the
dog sniffs of a car or luggage that provided the backdrop for those decisions, but instead applies equally to
a residence. Id. at 9a-10a.
The court of appeals also explained that the dog sniff
was not an invasion of any property-based interests. Pet.
App. 11a. The court disagreed with petitioner’s contention that the area outside his door “qualifies * * * as
protected ‘curtilage.’ ” Ibid. (citation omitted). Applying the four factors identified in United States v. Dunn,
480 U.S. 294 (1987)—“proximity of the area claimed to
be curtilage to the home, whether the area is included
within an enclosure surrounding the home, the nature
of the uses to which the area is put, and the steps taken
by the resident to protect the area from observation by
people passing”—the court of appeals found that “as the
district court explained, th[e] area was part of a common hallway, used regularly by other building residents
and by building cleaning staff,” and “despite locks at the
front door, entry to the interior hallways was not restricted * * * because building management routinely
granted consent to enter on request.” Pet. App. 11a-13a
(citations and internal quotation marks omitted).
The court of appeals rejected petitioner’s contrary
argument that “Dunn’s first factor—proximity of purported curtilage to the home—weighs so heavily in his favor that it is dispositive.” Pet. App. 13a. While accepting
10
that the factor “has been treated as highly relevant” in
some cases, the court found the “context of those cases is
critically different” because petitioner, unlike the defendants in those cases, lacked “the right to exclude others”
from the area at issue. Id. at 13a-14a. In doing so, the
court stressed that that “[m]ulti-dwelling units come in all
kinds of configurations, and some may include ‘common’
areas different from the apartment hallway here,” and
that “[o]ther cases may present different factual twists.”
Id. at 16a. And the court made clear that it “h[e]ld only
that on the facts as found by the district court and disputed by neither party, the police did not intrude on
Fourth Amendment-protected curtilage when they conducted a dog sniff in the common hallway just outside
[petitioner’s] apartment door.” Id. at 17a.
ARGUMENT
Petitioner renews his contentions that a drug-detection
dog’s sniff outside his apartment infringed his reasonable expectation of privacy (Pet. 19-22), and that officers
trespassed on his curtilage by entering a common hallway area outside his apartment (Pet. 22-24). The court
of appeals correctly rejected those contentions, and petitioner identifies no conflict warranting further review in
this case. In addition, this case would be an unsuitable
vehicle for resolving the question presented because petitioner’s challenge to the denial of his suppression motion
independently fails on two alternative grounds advanced
by the government below that the court of appeals did
not need to reach. This Court has previously denied petitions raising similar issues. See Makell v. United States,
586 U.S. 1051 (2018) (No. 18-5509); Lewis v. United
States, 143 S. Ct. 2499 (2023) (No. 22-6774). It should follow the same course here.
11
1. The court of appeals correctly affirmed the district court’s determination that the dog sniff outside petitioner’s apartment door did not infringe petitioner’s
reasonable expectation of privacy.
a. This Court has repeatedly held that a sniff by a drugdetection dog is not a search for Fourth Amendment purposes because it does not infringe any legitimate privacy
interest. The Court first addressed the issue in United
States v. Place, 462 U.S. 696 (1983), which considered
whether a drug-detection dog’s sniff of luggage at an
airport constituted a Fourth Amendment search.
The Court determined that it did not, reasoning that a
“canine sniff is sui generis” because it “discloses only the
presence or absence of narcotics, a contraband item.”
Place, 462 U.S. at 707. The Court accordingly explained
that even though “the sniff tells the authorities something about the contents of the luggage,” the information obtained is so limited that it does not infringe a
protected privacy interest and so does “not constitute a
‘search.’ ” Ibid. And in City of Indianapolis v. Edmond,
531 U.S. 32 (2000), the Court applied Place’s reasoning
to a drug-detection dog’s sniff of a car at a drug-interdiction checkpoint. Id. at 40.
In Illinois v. Caballes, 543 U.S. 405 (2005), the Court
reaffirmed that a drug-detection dog’s sniff does not intrude on any legitimate privacy interest, holding that the
Fourth Amendment permits police to use a drug-detection
dog to sniff a vehicle during a valid traffic stop. Id. at 407409. The Court explained that “any interest in possessing
contraband cannot be deemed ‘legitimate,’ and thus, governmental conduct that only reveals the possession of
contraband ‘compromises no legitimate privacy interest.’ ” Id. at 408 (quoting United States v. Jacobsen, 466
U.S. 109, 123 (1984)).
12
The Court observed that its holding was “entirely consistent” with Kyllo v. United States, 533 U.S. 27 (2001),
which had held that the use of a thermal-imaging device
to detect the growth of marijuana in a house constituted
an unlawful search. Caballes, 543 U.S. at 409. The Court
explained that the device in Kyllo “was capable of detecting lawful activity—in that case, intimate details in a
home, such as ‘at what hour each night the lady of the
house takes her daily sauna and bath.’ ” Id. at 409-410
(quoting Kyllo, 533 U.S. at 38). In contrast, “[a] dog sniff
conducted during a concededly lawful traffic stop that
reveals no information other than the location of a substance that no individual has any right to possess does
not violate the Fourth Amendment.” Id. at 410.
b. Petitioner here does not dispute that the dog sniff
outside his apartment door revealed only the presence of
illegal drugs. Thus, as the court of appeals recognized, a
straightforward application of this Court’s precedent establishes that the dog sniff did not infringe petitioner’s
reasonable expectation of privacy. See Pet. App. 8a-10a.
Petitioner offers no sound basis in this Court’s precedent for his contention (Pet. 25-27) that Place and Caballes should not apply to dog sniffs conducted outside
a home, as opposed to sniffs of luggage or the outside of a
car. As the court of appeals recognized, the reasoning of
Place and Caballes is “categorical, not context-specific.”
Pet. App. 10a. Those decisions establish that an individual’s legitimate expectation of privacy in his lawful activities is “categorically distinguishable” from any “hopes
or expectations concerning the nondetection of contraband” in his possession. Caballes, 543 U.S. at 410. That
principle is consistent with and draws support from other
precedent in analogous contexts, including this Court’s
holding in Jacobsen that a chemical test that reveals
13
only the presence or absence of contraband “compromises no legitimate privacy interest” and therefore does
not constitute “a search subject to the Fourth Amendment.” 466 U.S. at 123-124.
This Court’s opinion in Florida v. Jardines, 569 U.S.
1 (2013), does not support petitioner’s reasonableexpectation-of-privacy claim. In Jardines, the Court
held that police officers conducted a Fourth Amendment search when they took a drug-sniffing dog onto
the front porch of a house owned by a suspect, and the
dog moved to the base of the front door and alerted to
the presence of drugs inside the house. Id. at 3-4, 11-12.
The Court concluded that the officers’ actions amounted
to a Fourth Amendment search because they had trespassed on a constitutionally protected area (the front
porch) and exceeded the scope of any implied license to
approach the front door when they brought a drugsniffing dog to explore the area in hopes of obtaining
evidence of a crime. Id. at 7-9. Because that physical
intrusion was “enough to establish that a search occurred,” the Court had no need to, and did not, “decide
whether the officers’ investigation of Jardines’ home violated his expectation of privacy.” Id. at 11.
Instead of relying on this Court’s precedent, petitioner instead invokes the view expressed in a threeJustice concurrence in Jardines that a privacy violation
had occurred in that case. Pet. 20; see Jardines, 569 U.S.
at 12-16 (Kagan, J., concurring). But four dissenting Justices, in the only other opinion to address that question
in Jardines, saw “no basis for concluding that the occupants of a dwelling have a reasonable expectation of privacy in odors that emanate from the dwelling and reach
spots where members of the public may lawfully stand.”
569 U.S. at 24 (Alito, J., dissenting). Similarly, no other
14
Justices endorsed the view that use of a drug-detection
dog constitutes, like the thermal-imaging device at issue in Kyllo, “ ‘a device that is not in general public use’ ”
that enables the government “ ‘to explore details of the
home that would previously have been unknowable without physical intrusion,’ ” such that “police officers cannot use it to examine a home without a warrant.” Id. at
14-15 (Kagan, J., concurring) (quoting Kyllo, 533 U.S.
at 40).
Petitioner also echoes (Pet. 21) Justice Souter’s Caballes dissent in asserting that dog sniffs should be
treated as “modern investigatory techniques that are the
functional equivalent of home invasions, like the thermalimaging device in Kyllo.” While the dissent sought to
“rethink[] Place’s analysis” based in part on Kyllo, the
Court did not do so. Caballes, 543 U.S. at 411 (Souter,
J., dissenting); see id. at 413-414 & n.3 (citing Kyllo, supra). But petitioner does not explain why Cody, the drugdetection dog that sniffed his door, is analogous to a
thermal-imaging device. To the contrary, a dog “is not
a new form of ‘technology’ or a ‘device,’ ” and “the use of
dogs’ acute sense of smell in law enforcement dates
back many centuries.” Jardines, 569 U.S. at 25 (Alito,
J., dissenting). Nor did petitioner present any evidence
below to support the analogy he seeks to draw.
2. Petitioner separately contends (Pet. 22-24) that
the drug-detection team’s entry into the area of the hallway outside his apartment constituted a search because
it trespassed on the curtilage of his home. The court of
appeals correctly affirmed the district court’s rejection
of that factbound claim on the record in this case.
a. This Court has set forth four factors to inform the
inquiry whether an area is constitutionally protected curtilage: (1) proximity to the home; (2) whether the area is
15
included within an enclosure surrounding a home; (3) the
nature and uses of the area; and (4) the steps taken by
the resident to protect the area from observation by
people passing by. United States v. Dunn, 480 U.S. 294,
301 (1987). In this case, the lower courts correctly applied
the Dunn factors to the specific facts of this case to find
that the area in front of petitioner’s apartment door is
not curtilage of his apartment.
Although the hallway was within the locked doors to
the main entry of the apartment complex, entrance to
the hallway was in practice “ ‘not restricted . . . in any
way’ because building management ‘routinely’ granted
consent to enter on request.” Pet. App. 13a (quoting id.
at 56a, 58a). The area was “part of a common hallway,
used regularly by other building residents and by building cleaning staff ” in addition to non-resident visitors,
id. at 12a-13a, all of whom “would routinely walk past
[petitioner’s] door on their way to and from the elevators,” id. at 4a. And although the area at issue was close
to his door, the “context” showed petitioner’s lack of a
right to exclude others from it. See id. at 13a-14a. Nor
had petitioner even attempted to signal exclusivity or
control by placing personal possessions in the area. Id.
at 4a.
Contrary to petitioner’s contention (Pet. 23), the decision below does not conflict with this Court’s decisions
in Jardines and Collins v. Virginia, 584 U.S. 586 (2018),
neither of which addressed the constitutional status of
an apartment building’s common areas. As the court of
appeals observed, the defendant in Jardines, “as the
owner of the property, had a right to exclude others from
his front porch,” whereas petitioner had no such right
to exclude others from the common hallway outside his
apartment. Pet. App. 16a n.7. Similarly, Collins, which
16
the court of appeals noted, id. at 11a, addressed a partially enclosed driveway abutting a house, Collins, 584
U.S. at 593-594, not the common area of an apartment
building. Neither case conflicts with the court of appeals’
limited finding pursuant to Dunn that, “on the facts as
found by the district court and disputed by neither
party, the police did not intrude on Fourth Amendmentprotected curtilage when they conducted a dog sniff in
the common hallway just outside [petitioner’s] apartment door.” Pet. App. 17a.
3. Petitioner contends (Pet. 11-18) that lower courts
have divided on both issues that he has raised. But petitioner identifies only a shallow conflict on the reasonableexpectation-of-privacy issue, and no conflict at all on the
factbound curtilage issue. Neither issue warrants further
review in this case.
As to a reasonable expectation of privacy, petitioner
contends (Pet. 12-15) that the decision below conflicts
with two decisions by other circuits holding that a drugdetection dog’s sniff outside an apartment door infringed
an apartment dweller’s reasonable expectation of privacy. See United States v. Thomas, 757 F.2d 1359 (2d
Cir. 1985), cert. denied, 474 U.S. 819 (1985), and 479
U.S. 818 (1986); United States v. Whitaker, 820 F.3d 849
(7th Cir. 2016). But as petitioner acknowledges, the fortyyear-old Second Circuit case on which he relies, Thomas,
has been subject to “criticism,” Pet. 14, and the Second
Circuit has recently “declin[ed] to extend it” in recognition that its analysis “has fallen out of favor,” United
States v. McKenzie, 13 F.4th 223, 233 (2021), cert. denied,
142 S. Ct. 2766 (2022). Similarly, the Seventh Circuit has
recently “distinguished” and declined to “extend” the decision of that court, Whitaker, on which petitioner relies.
17
United States v. Lewis, 38 F.4th 527, 533, 535 (2022),
cert. denied, 143 S. Ct. 2499 (2023).
On the curtilage issue, petitioner contends (Pet. 14-15)
that the decision below conflicts with two state-court decisions finding that an area outside an apartment door was
curtilage. But neither of those decisions addressed facts
analogous to this case. In each of those state cases, the defendant lived on the top floor of a small apartment building and shared a landing with a small number of other
tenants. See State v. Rendon, 477 S.W.3d 805, 806-807
(Tex. Crim. App. 2015) (defendant lived on second floor
of four-unit building); People v. Bonilla, 120 N.E.3d 930,
932 (Ill. 2018) (defendant lived on third floor of 12-unit
building), cert. denied, 589 U.S. 916 (2019). Thus, the areas at issue in those cases were “semi-private,” Rendon,
477 S.W.3d at 810, and effectively “not open to the general public,” Bonilla, 120 N.E.3d at 936 (deeming case
materially similar to previous case with such a finding).
In this case, in contrast, the Greenwich Place apartment complex housed “well over 100 separate apartments,” C.A. App. 363, and entrance to the building’s common areas was effectively “not restricted to residents in
any way,” Pet. App. 58a. Petitioner’s apartment was located on a long hallway serving numerous units, close to
the common elevator and stairwell, and the area at issue
was frequented by other tenants, non-resident visitors,
and the building’s cleaning staff. See pp. 14-16, supra.
Given those facts, it is far from clear that any court
would conclude that the area outside petitioner’s apartment door constitutes curtilage. Instead, the state-court
decisions on which he relies are expressly factbound.
See Bonilla, 120 N.E.3d at 933 (“Obviously, our legal
analysis on a motion to suppress is heavily dependent
on the specific facts of each case”); Rendon, 477 S.W.3d
18
at 810 (“We * * * narrowly hold that the curtilage extended to appellee’s front-door threshold located in a
semi-private upstairs landing”).
Conversely, the court of appeals in this case recognized that “[m]ulti-dwelling units come in all kinds of
configurations” and therefore took care to limit its holding to “the facts as found by the district court and disputed by neither party.” Pet. App. 16a-17a. No further
review of the factbound curtilage determination in this
case is warranted. See Sup. Ct. R. 10; United States v.
Johnston, 268 U.S. 220, 227 (1925) (“We do not grant a
[writ of ] certiorari to review evidence and discuss specific
facts.”); see also Kyles v. Whitley, 514 U.S. 419, 456-457
(1995) (Scalia, J., dissenting) (“[U]nder what we have
called the ‘two-court rule,’ the policy [in Johnston] has
been applied with particular rigor when district court
and court of appeals are in agreement as to what conclusion the record requires.”) (citing Graver Tank &
Mfg. Co. v. Linde Air Prods. Co., 336 U.S. 271, 275 (1949)).
4. At all events, this case would be an unsuitable vehicle to address the question presented because petitioner’s
challenge to the denial of his suppression motion independently fails on two alternative grounds advanced by
the government below but not addressed by the court of
appeals. See Dandridge v. Williams, 397 U.S. 471, 475 n.6
(1970) (prevailing party may rely on any ground to support the judgment, even if not considered below); Gov’t
C.A. Br. 36-39. This Court does not grant a writ of certiorari to “decide abstract questions of law * * * which,
if decided either way, affect no right” of the parties. Supervisors v. Stanley, 105 U.S. 305, 311 (1882); see Herb
v. Pitcairn, 324 U.S. 117, 126 (1945) (“[O]ur power is to
correct wrong judgments, not to revise opinions.”).
19
a. First, suppression of the evidence resulting from
the dog sniff outside petitioner’s apartment door is unwarranted under the good-faith exception to the exclusionary rule.
The exclusionary rule is a “judicially created remedy
designed to safeguard Fourth Amendment rights generally through its deterrent effect.” United States v. Leon,
468 U.S. 897, 906 (1984) (quoting United States v. Calandra, 414 U.S. 338, 348 (1974)). This Court has emphasized,
however, that suppression is an “extreme sanction,” id. at
916, recognizing that the “exclusion of relevant incriminating evidence always entails” “grave” societal costs,
Hudson v. Michigan, 547 U.S. 586, 595 (2006). Most obviously, it allows “guilty and possibly dangerous defendants [to] go free—something that ‘offends basic concepts
of the criminal justice system.’ ” Herring v. United States,
555 U.S. 135, 141 (2009) (quoting Leon, 468 U.S. at 908).
This Court has accordingly held that, “[t]o trigger the
exclusionary rule, police conduct must be sufficiently deliberate that exclusion can meaningfully deter it, and
sufficiently culpable that such deterrence is worth the
price paid by the justice system.” Herring, 555 U.S. at
144. Suppression may be warranted “[w]hen the police
exhibit ‘deliberate,’ ‘reckless,’ or ‘grossly negligent’ disregard for Fourth Amendment rights.” Davis v. United
States, 564 U.S. 229, 238 (2011) (quoting Herring, 555 U.S.
at 144). “But when the police act with an objectively reasonable good-faith belief that their conduct is lawful, * * *
the deterrence rationale loses much of its force, and exclusion cannot pay its way.” Ibid. (citation and internal
quotation marks omitted). Reliance on “binding appellate
precedent” can establish the applicability of the goodfaith exception. Id. at 241.
20
As the government argued in the court of appeals,
those principles confirm that suppression would not be appropriate here even if a Fourth Amendment violation occurred. Gov’t C.A. Br. 40-43. As petitioner acknowledges
(Pet. 15-16), well before the Maryland state officers conducted the dog sniff in this case, the Court of Appeals
of Maryland—that State’s highest court—had held that
“a sniff of an apartment door from a common area is a
permissible non-search under the Fourth Amendment.”
Fitzgerald v. State, 864 A.2d 1006, 1007 (2004). And Maryland’s intermediate appellate court had reached the same
conclusion following Jardines. See Lindsey v. State, 127
A.3d 627, 641-644 (Md. Ct. Spec. App. 2015), cert. denied, 135 A.3d 417 (Md. 2016); accord United States v.
Makell, 721 Fed. Appx. 307 (4th Cir.) (per curiam) (nonprecedential decision reaching the same result), cert.
denied, 586 U.S. 1051 (2018).
It was reasonable for the Maryland officers who conducted the dog sniff outside petitioner’s apartment door
to rely on the Maryland courts’ “binding appellate precedent specifically authoriz[ing]” that “particular police
practice.” Davis, 564 U.S. at 241. Petitioner cannot show
that the officers exhibited anything approaching the “ ‘deliberate,’ ‘reckless,’ or ‘grossly negligent’ disregard for
Fourth Amendment rights” that is required to justify
the high costs of suppressing evidence of petitioner’s
crimes. Id. at 238 (citation omitted).
b. Second, even if petitioner were to prevail in his
challenge to the dog sniff, the warrant application would
have established probable cause to search petitioner’s
apartment without the results of that sniff. Gov’t C.A. Br.
36-39. The inclusion of illegally obtained evidence in the
warrant affidavit would invalidate the warrant only “if
it proved to be critical to establishing probable cause for
21
the issuance of the warrant.” United States v. Karo, 468
U.S. 705, 719 (1984). If, on the other hand, “sufficient untainted evidence was presented in the warrant affidavit
to establish probable cause, the warrant was nevertheless valid.” Ibid.
The information in the warrant affidavit established
probable cause to search petitioner’s apartment even
without the canine sniff. The affidavit recounted the extensive wiretap investigation and physical surveillance
that led the task force officers to Apartment 201. See
pp. 3-7, supra. Investigators twice observed Philander
Spruill, a known drug trafficker, travel to the Greenwich
Place apartment complex shortly after he was intercepted, on the wiretap, informing a potential drug purchaser that he was on his way to obtain drugs from his
supplier. Pet. App. 92a-101a.
In both instances, after returning to his residence,
Spruill was intercepted on the wiretap arranging to sell
the drugs to the would-be purchasers. Pet. App. 92a101a. In one of those instances, Spruill was observed
giving the drug purchaser a grocery bag containing
items used to cut and package drugs for street-level
sales, which appeared to contain fentanyl residue. Id.
at 95a-96a. In the other instance, Spruill was heard
mixing the drugs in the background of the call while
commenting that they were being prepared at that moment. Id. at 100a.
Physical surveillance and GPS tracking data revealed
that Spruill visited Greenwich Place at least four more
times in July and August 2019. Pet. App. 103a-104a. In
the same period, investigators observed petitioner and
a woman visit Spruill at his residence. Id. at 101a-102a.
They determined that the car was registered to Latrice
Campbell, and found traffic-stop records showing that
22
petitioner had repeatedly been the driver of that car. Id.
at 102a. And they learned from Greenwich Place’s management that Campbell was the lessee of Apartment
201. Id. at 103a.
The affidavit also described petitioner’s extensive
criminal history, which included multiple convictions for
drug trafficking, Pet. App. 88a, and explained that it is
common for drug traffickers to conceal contraband, drug
proceeds, and records of drug transactions at their residences and residences of their relatives and associates,
id. at 105a-106a. Thus, even without the results of the dog
sniff, the information in the warrant application established probable cause to believe petitioner was selling
drugs out of his apartment. See Karo, 468 U.S. at 719.
CONCLUSION
The petition for a writ of certiorari should be denied.
Respectfully submitted.
D. JOHN SAUER
Solicitor General
A. TYSEN DUVA
Assistant Attorney General
CELIA CHOY
Attorney
MARCH 2026
This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.