Defendant was convicted of first-degree murder in the death of his roommate, Jerry Louis Alston. We affirm in part, reverse in part, and remand with instructions.
On 17 May 2003, Amy Millikan (Amy) advised Greensboro Police Sergeant D.S. Morgan that her roommate, Aja Snipes (Aja), had confided in her that Aja’s friend, “Phoenix,” had killed his roommate. Amy provided an address on Drexel Road where she believed “Phoenix” lived, although the house number was later determined to be incorrect. Sergeant Morgan relayed this information to Sergeant Jane Allen and dispatched two other officers to the scene. “Phoenix” was later identified as defendant, Glenn Devon McKinney.
Sergeant Morgan drove to Amy and Aja’s apartment to interview Aja about her knowledge of the crime. Aja’s description of the house where the victim and defendant lived was relayed to Sergeant Allen, who by that time had arrived at Drexel Road. Two other officers were knocking on doors and checking with neighbors to see if they were aware of two males living on Drexel Road. The officers focused on 1917 Drexel Road because “that’s the house that seemed to match the description that was being given.”
When Sergeant Allen arrived at 1917 Drexel Road, the residence was locked and secured. Sergeant Morgan informed Sergeant Allen that defendant was reportedly driving the victim’s blue Jeep *55 Cherokee, and Sergeant Allen noted that the Jeep was not in the driveway. The victim’s sister, Irma Alston (Irma), arrived and informed Sergeant Allen that her brother lived at 1917 Drexel Road. Irma called her brother, Ricky Alston (Ricky), because she believed that he had a key to the house, although when he arrived on the scene he did not have a key with him. Neither Irma nor Ricky had heard from the victim in several days. Sergeant Allen contacted the victim’s employer and learned that the victim had not reported for work the day before as scheduled, which was very unusual.
Sergeant Allen continued to gather information, speaking by telephone with the officers who were interviewing Aja and Amy and hearing conversations between other officers and the victim’s family members, who had begun to congregate on the sidewalk outside the residence. Sergeant Allen learned that defendant had told Aja that the victim “pulled a knife on me. I didn’t know what else to do,” and defendant added that the victim “wouldn’t be coming back.” When Sergeant Allen returned to the residence after briefly leaving the scene, she found that Ricky had entered defendant’s house. After removing an air conditioning unit and climbing through the window, Ricky invited the officers into the house. Accompanied by Sergeant Morgan, who by this time had arrived on the scene, Sergeant Allen entered the residence. The officers later testified that they entered the house to look for “a victim who [might] be in need of assistance” and “for any sign that... there may in fact have been an assault there, and perhaps ... a victim somewhere else that [they] needed to continue a search for.” As they went through the house, the officers saw what appeared to be blood spatter in the front bedroom. After this discovery, they left the house, instructed other officers to secure the scene, and went to obtain a search warrant.
After securing a search warrant, Sergeant Allen returned to the residence with Detective David Spagnola. While crime scene specialists investigated the front bedroom, Sergeant Allen and Detective Spagnola noticed a large, city-issued trash can in the laundry room. A towel and two candles were on the lid of the can. The officers believed it was unusual for the trash can to be inside the house, and because Detective Spagnola was unable to lift it, they realized it might contain a victim. The officers asked one of the crime scene specialists to photograph the trash can and its contents. Underneath the towel on the lid of the can was a computer-generated note that said “Glenn Devon McKinney did this.” When the officers opened the trash can, they discovered the victim’s body inside.
*56 Defendant was tried non-capitally, convicted of first-degree murder, and sentenced to life imprisonment without parole. Before trial, defendant filed a motion to suppress thé evidence obtained from 1917 Drexel Road. His motion challenged not only the officers’ initial warrantless entry into the residence at that address, but also the validity of the subsequent search warrant. Defendant contended that the search warrant was invalid because probable cause for issuing the warrant was based in part on the blood spatter evidence obtained by police during their initial entry into the residence. He argued that all evidence seized during the subsequent search should be suppressed, including the victim’s body. In response, the state argued that defendant lacked standing to object to the initial warrantless entry of the house, and, in the alternative, that exigent circumstances authorized law enforcement officials to enter the residence. The trial court denied defendant’s motion to suppress.
On appeal, the Court of Appeals reversed defendant’s conviction, holding that the trial court erred in denying defendant’s motion to suppress because the initial police entry into the residence was unlawful and therefore the subsequent search warrant was “fruit of the poisonous tree.”
State v. McKinney,
We first examine whether defendant had standing to contest the police searches of the victim’s house. When the competency of evidence is challenged and the trial court conducts a
voir dire
to determine admissibility, the general rule is that it should make findings of fact to show the basis of its ruling.
State v. Steen,
A defendant has standing to contest a search if he or she has a reasonable expectation of privacy in the property to be searched.
See State v. Mlo,
During the suppression hearing in the instant case, the prosecutor raised and properly preserved the issue of defendant’s standing to contest the search. Conflicting evidence was presented as to whether defendant maintained a reasonable expectation of privacy in the premises. The trial court did not resolve this conflicting evidence or issue any conclusions as to whether such facts gave rise to a reasonable expectation by defendant of privacy in the victim’s residence at the time the search was conducted. Because of this omission, defendant’s standing to contest the validity of the search is unclear, and, though we express no opinion on this question, our standard of review compels us to remand the case for findings of fact on this issue.
We now consider the propriety of the initial, warrantless search and the existence of probable cause to support the search warrant. The Fourth Amendment to the United States Constitution protects individuals “against unreasonable searches and seizures” and provides that search warrants may only be issued “upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched and the persons or things to be seized.” U.S. Const, amend. IV;
see also
N.C. Const. art. I, § 20 (“General warrants . .. are dangerous to liberty and shall not be granted.”). “ ‘[S]earches and seizures inside a home without a warrant are presumptively
*58
unreasonable.’ ”
State v. Smith,
Fourth Amendment rights are enforced primarily through the “exclusionary rule,” which provides that evidence derived from an unconstitutional search or seizure is generally inadmissible in a criminal prosecution of the individual subjected to the constitutional violation.
See, e.g., State v. Colson,
The “fruit of the poisonous tree doctrine,” a specific application of the exclusionary rule, provides that “[w]hen evidence is obtained as the result of illegal police conduct, not only should that evidence be suppressed, but all evidence that is the ‘fruit’ of that unlawful conduct should be suppressed.”
State v. Pope,
*59 United States Supreme Court Justice Lewis Powell explained the interplay between the independent source rule and the constitutional validity of a search warrant:
The independent-source rule has as much vitality in the context of a search warrant as in any other. Thus, for example, unlawfully discovered facts may serve as the basis for a valid search warrant if knowledge of them is obtained from an independent and lawful source. The obvious and well-established corollary is that the inclusion in an affidavit of indisputably tainted allegations does not necessarily render the resulting warrant invalid. The ultimate inquiry on a motion to suppress evidence seized pursuant to a warrant is not whether the underlying affidavit contained allegations based on illegally obtained evidence, but whether, putting aside all tainted allegations, the independent and lawful information stated in the affidavit suffices to show probable cause.
United States v. Giordano,
The “excise and re-examine” corollary to the independent source rule, as explained by Justice Powell in
Giordano,
qualifies the cardinal principle that if “information used to obtain [a search] warrant was procured through an unconstitutional seizure[,] . . . the warrant and the search conducted under it were illegal and the evidence obtained from them was ‘fruit of the poisonous tree.’ ”
State v. Lombardo,
In light of these well-settled Fourth Amendment principles, we examine two distinct issues: (1) whether the officers’ initial, warrantless entry into the residence at 1917 Drexel Road was constitutionally permissible under a recognized exception 1 to the warrant requirement; and (2) if not, whether sufficient untainted evidence not derived from the unreasonable warrantless search provided probable cause to issue the search warrant. The Court of Appeals properly decided the first issue, but failed to address the second.
*61
The officers’ initial search of defendant’s house was conducted without a warrant and was therefore presumptively unreasonable.
See Smith,
Because the officers’ initial entry was unlawful, the Court of Appeals concluded that “the subsequent search warrant was based upon ‘fruit of the “poisonous” tree.’ ”
Id.
at 141,
If the affidavit supporting a warrant application includes information obtained illegally, “[a] reviewing court should excise the tainted evidence and determine whether the remaining, untainted evidence would provide a neutral magistrate with probable cause to issue a warrant.”
United States v. Vasey,
Thus, the admissibility of the evidence defendant sought to suppress turns on whether the untainted evidence in the supporting affidavit established probable cause to search his residence. Any information in the warrant affidavit that was acquired during the illegal warrantless entry must be excised. Specifically, the following portion of the affidavit must be disregarded, as it was derived exclusively from the officers’ unlawful warrantless search:
Rick Alston then entered the residence, concerned for his brother’s well being, and allowed Detective J.F. Allen to walk through it with him. What appears to be blood spatters on the walls of a bedroom, blood smudges in the carpet of the bedroom and bloodstains on one chair were located in the residence. No one was located inside.
With this tainted information excised, the validity of the search warrant (and consequently, the admissibility of the physical evidence seized thereunder) depends on whether the remaining information set forth in the warrant affidavit was sufficient to establish probable cause to search defendant’s house.
The existence of probable cause is a “commonsense, practical question” that should be answered using a “totality-of-the-circumstances approach.”
Illinois v. Gates,
*63
In the instant case, however, the trial court’s order denying defendant’s motion to suppress did not specify the factual or legal basis for the decision.
See McKinney,
The United States Supreme Court has safeguarded the role of trial courts in making “independent source” determinations with respect to evidence challenged on Fourth Amendment grounds. In
Murray v. United States,
federal agents had entered a warehouse without a warrant, wherein they observed in plain view bales of what they believed to be marijuana.
*64 Under circumstances similar to the instant case, the United States Court of Appeals for the Ninth Circuit explained why remand to the trial court was more appropriate than unilateral appellate court determination of the warrant’s validity:
The [trial] court. .. never made an inquiry as to whether the search warrant was based upon independent evidence. . . .
While in the present case, there appears to be sufficient independent evidence to have prompted the issuance of a search warrant despite some reference to the illegal entry, this is essentially the duty of the district court to make the appropriate finding. We therefore vacate and remand to the district court to inquire into the basis for the search warrant.
United States v. Driver,
This Court has generally followed the same remedial course of action when “the conclusion [of law] is based upon such a careful assessment of the facts, and actually constitutes the application of a standard to the facts.”
State v. McDowell,
Accordingly, the decision of the Court of Appeals is affirmed in part and reversed in part, and the portion of that Court’s judgment reversing defendant’s conviction is vacated. We therefore remand this case to the Court of Appeals with instructions to remand to the trial court for further proceedings consistent with this opinion. As to the additional questions presented by the state, we conclude that discretionary review of those issues was improvidently allowed.
JUDGMENT VACATED; AFFIRMED IN PART, REVERSED IN PART, AND REMANDED; DISCRETIONARY REVIEW IMPROVIDENTLY ALLOWED IN PART.
Notes
. The parties and the Court of Appeals have variously labeled the alleged exception to the warrant requirement in the instant case as “exigent circumstances,” “emergency activities,” and “emergency response.” See generally Wayne R. LaFave, Search and Seizure: A Treatise on the Fourth Amendment § 6.6(a)-(c), at 451-79 (4th ed. 2004).
