OPINION
{1} The State has appealed from a decision of the district court granting Defendant’s motion to suppress evidence discovered in his home during a warrantless, nonconsensual search by police. The State appealed pursuant to NMSA 1978, Section 39-3-3(B)(2) (1972). The district court suppressed the evidence on the ground that the community caretaker exception to the warrant requirement was not applicable. The Court of Appeals affirmed the district court in a Memorandum Opinion. See State v. Ryon, No. 23,318 (N.M.Ct.App. Jan. 6, 2004). Both courts relied on State v. Nemeth,
I.
{2} The facts are taken from testimony at the suppression hearing and are mostly undisputed. At approximately 8:20 p.m. on January 18, 2002, Deputy Sanchez and Deputy Benavidez of the Bernalillo County Sheriffs Department responded to a dispatch to 128 Alameda N.W. in Albuquerque, New Mexico for a “911 call welfare check” with a “possible stabbing victim.” When she arrived, Sanchez saw a man and a woman outside the home. The man, Isaac Atencio, was bleeding heavily from the head, and the woman, Barbara Hoover, was crying and yelling. Sanchez noticed that there was blood all over, but that Atencio was conscious and walking. As she was checking his stab wounds, both Atencio and Hoover told the deputy that Defendant, Hoover’s boyfriend, was responsible for the stabbing and that he lived down the street at 9047 Fourth Street. Sergeant Sanchez and a fiеld investigator arrived at the scene within minutes to assist the deputies. While the deputy was helping Atencio and trying to calm Hoover, the sergeant and Benavidez checked the home to ensure that there were no other victims inside and that Defendant was no longer present. Rescue personnel arrived within about five minutes and transported Atencio to the hospital.
{3} As Deputy Sanchez approached the field investigator, a man who was covered in blood approached, identified himself as Defendant, and stated that he wanted to tell her what happened. He was immediately handcuffed, frisked, and Mirandized. He told her that he and Hoover were fighting, and when Atencio tried to intervene, he withdrew his knife and stabbed Atencio. No weapons were found on Defendant. It was about 8:45-8:50 p.m. when Defendant returned to the crime scene. 1
{4} Shortly after deputies arrived at the crime scene on Alameda, Deputies Pepin, Neel, and Hampsten, who were in separate patrol cars and heard the first dispatch, responded to a second dispatch to locate the suspect whom they were told might be en route to his home at 9047 Fourth Street. As they were driving to that location, a third dispatcher informed them that the suspect might have a head or face injury, although the source of this information was not given. 2 The State estimates that deputies arrived at Defendant’s home, which was one of two residences on the property, between 8:25 and 8:30 p.m. Hampsten was to watch the side and back of the home, while Pepin and Neel tried to contact Defendant inside. Both Pepin and Neel testified that the front door was ajar, and the lights were on. Pepin recalled that the door was open “six, seven inches to a foot,” while Neel said it was just barely cracked open, about “an inch to an inch and a half.” The deputies knocked and announced, called inside, but received no response. Both deputies testified that they went to the home looking for the suspect. Thinking it was odd for the door to be open with no one answering, and knowing that he “may have sustained a head wound of some sort,” Pepin testified that they decided to enter the home to see if anybody was injured inside, and that it was “pretty cold outside.” On cross examination, he admitted that he went into the home looking for the suspect, but then clarified on redirect, that he entered the home looking for a person with a “possible head injury.” Neel testified that they entered the home to look for the suspect and to see if he needed medical attention: “My job there was to make sure that no one else in that house needed aid fast____My job was to locate the suspect.”
{5} According to the deputies, the home was small; to the left of the front door was a hall that led to a bathroom and bedroom, and to the right was a living room with a kitchen in it. After walking down the hall, from room to room, and finding no one inside, they returned to the front of the house. On the way out, they noticed in the kitchen sink a “folding-type knife” that appeared to be stained with blood. Without touching anything, the deputies secured the home and obtained a search warrant.
{6} Defendant filed two motions to suppress evidence “seized or observed” by deputies during the warrantless search of his home and from a search warrant that was executed later that night. Both motions alleged that the evidence was obtained in violation of the Fourth Amendment of the United States Constitution and Article II, Section 10 of the New Mexico Constitution. 3 In response to the first motion, the State argued that the warrantless search of the home was reasonable under the community caretaker exception. It did not argue that the officers had probable cause together with exigent circumstances to enter Defendant’s home without a warrant. Deputies Sanchez, Pepin, and Neel testified at the suppression hearing, and an offer of proof was made on behalf of Defendant and his mother to establish the relevant time frames.
{7} After the hearing, the district court applied the community caretaker exception articulated in Nemeth and found the search was unlawful.
The Officers were clearly responding to the Defendant’s home to locate a criminal suspect. At least in substantial part they were engaged in crime-solving activities. The facts within their knowledge were lacking any indication about source of the information, the likelihood that an injury occurred, the nature or severity of the injury, if any, how it occurred and when it might have occurred in relation to then-response. Much of this information (known to fellow officers a short distance away) would have been important to formation of a reasonable belief that the Defendant was in need of immediate medical attention. In summary, the facts within the entering officers’ knowledge were not sufficient to elevate their primary role to that of community caretaking.
... It appears to this Court that the officers were acting with good intentions and good faith belief that their entry into the Defendant’s residence was permissible to determine' whether the Defendant whom they sought was inside and injured.
{8} In affirming the district court decision to suppress the evidencе, the Court of Appeals concluded that entry into a private home without a warrant is reasonable only if the State establishes that entry was necessitated by exigent circumstances, an emergency situation, or articulable public safety reasons, and that the officer was acting without reasonable suspicion of criminal activity as a community caretaker. Ryon, No. 23,318, slip. op. at 5. The Court of Appeals concluded that the community caretaker exception was not applicable because the deputies in this case were investigating a crime in which Defendant was a suspect. Id. at 6-7. Applying a deferential standard of review, the court held that there was substantial evidence to support the district court finding that the entering deputies did not have enough information to form a reasonable belief that Defendant was in immediate need of medical attention. Id. We granted the State’s petition for certiorari. See Rule 12-502 NMRA 2004.
{9} On appeal to this Court the State argues that the Court of Appeals should have reviewed the reasonableness issue de novo and that both courts misstated the law by relying on Nemeth and applying a “strict, no investigative purpose test.” The State contends that the community caretaker exception applies to this case. The State acknowledges that some courts distinguish the exception from a principle sometimes described as the emergency assistance doctrine but contends that the entry was lawful under either the exception or the doctrine. In his answer brief, Defendant argues that the State did not show facts sufficient to satisfy the community caretaker exception. At oral argument, however, he argued that a warrantless entry into the home is lawful only in an emergency. We believe that both-parties agree that the proper test for this case was established in People v. Mitchell,
{10} The State advocates the Nemeth “good faith” standard, i.e. that the entry must not have been a pretext to find evidence or arrest a suspect. The State notes the district court found that the dеputies were acting in good faith. Defendant advocates the Mitchell “primary motivation” standard and notes the district court found that the deputies were primarily engaged in crime-solving activities. The State contends that the facts and circumstances in this case require a conclusion that an emergency entry was objectively reasonable. Defendant contends, on the other hand, that the State failed to show an objectively reasonable entry, because it was unclear to the officers whether Defendant was injured. We address the community caretaker exception, the emergency assistance doctrine, the relationship of one to the other, and clarify the test to be applied. We then apply that test.
II.
{11} Appellate courts review a district court’s decision to suppress evidence based on the legality of a search as a mixed question of fact and law. State v. Vandenberg,
A.
{12} The community caretaker exception was first recognized by the United States Supreme Court in Cady v. Dombrowski,
{13} In Cady the Court announced two important principles. It recognized that police have dual roles as criminal investigators and community caretakers. They function as community caretakers, for example, in assisting those whose vehiclеs are disabled. This function is “totally divorced from the detection, investigation, or acquisition of evidence relating to the violation of a criminal statute.” Id. at 441,
{14} The United States Supreme Court has never applied the community caretaker exception to a police-citizen encounter in the home, but it has approved in dicta an emergency assistance doctrine that would permit officers to search a home without a warrant, even if they were engaged in crime-solving activities. Mincey v. Arizona,
{15} The United States Supreme Court addressed the issue of whether a warrant is required when police confront an emergency situation presented by a possible homicide. Id. at 392,
We do not question the right of the police to respond to emergency situations. Numerous state and federal cases have recognized that the Fourth Amendment does not bar police officers from making warrantless entries and searches when they reasonably believe that a person within is in need of immediate aid.... “The need to protect or preserve life or avoid serious injury is justification for what would be otherwise illegal absent an exigency or emergency.” Wayne v. United States, 115 U.S.App. D.C. 234, 241,318 F.2d 205 , 212, [1963] (opinion of Burger, J.). And the police may seize any evidence that is in plain view during the course of their legitimate emergency activities.
But a warrantless search must be “strictly circumscribed by the exigencies which justify its initiation.” Terry v. Ohio, 392 U.S. [1,] 25-26 [88 S.Ct. 1868 ,20 L.Ed.2d 889 ] [1968].
Id. at 392-93,
{16} In New Mexico we have recognized that officers may stop a vehicle on a public road without probable cause or reasonable suspicion on the basis of a “specific, articulable safety concern” in their capacity as community caretakers. State v. Reynolds,
{17} Until recently, use of the community caretaker exception in New Mexico has been limited to the “public servant” function of police, under Cady, in their encounters with citizens and vehicles on public roads. See generally State v. Walters,
B.
{18} Nemeth was a departure from our earlier application of the community caretaker exception. In Nemeth, the Court of Appeals broadly extended the exception to justify a forceful entry into the home by police without a warrant, provided they enter solely out of concern for the person’s welfare.
{19} In Nemeth, the Court of Appeals made two important observations with which we agree. First, the Court recognized that in some cases the community caretaker exception might apply to a noneonsensual police-citizen encounter implicating the Fourth Amendment. Id. ¶¶ 26-27. Next, it emphasized an intrusion into the privacy and sanctity of the home must be guarded with “careful vigilance” and permitted “only in carefully thought-through and clearly justifiable circumstances.” Id. ¶ 30. We agree with both observations.
{20} In Jason L., we cited State v. Walters,
{21} Nemeth was also correct to emphasize the constitutional significance of a warrantless intrusion into a home. Id. ¶ 30. Yet we are concerned Nemeth does not convey the urgency required to make a warrantless intrusion into a home, even to provide emergency assistance, reasonable. In its analysis, the court concluded that the terms “community caretaker,” “emergency aid or assistance,” and “exigent circumstances” doctrines are basically different descriptions of the same community caretaker function. Id. ¶¶ 32-36. Although the court seemed to analyze the case under the emergency assistance doctrine, it ultimately held that when police enter a home in response to a suicide, they are performing a more generic community caretaker function, the primary characteristic of which is the absence of concern by police about violations of the law. Id. ¶¶ 34-40. No warrant was required, because the entry was a welfare check or a “public service” that fit squarely within the community caretaker doctrine, since the officers reasonably believed defendant was suicidal, in need of immediate assistance, and they limited the intrusion by only trying to ascertain whether they could assist her. Id. ¶ 40.
{22} We agree with Nemeth to the extent it holds that police are constitutionally permitted to enter a home without a warrant or consent in some situations. We disagree with Nemeth that all three terms are simply different descriptions of a general community caretaker function. Although there are similarities, there are also differences. Each term is unique; each term reflects a particular search or seizure; each term has become associated with a different test, one that enables a court to assess its applicability to a particular search and seizure. The decision in Nemeth to conflate the emergency assistance doctrine with the broader community caretaker exception and hold that officers were merely performing a welfare check or “public service” is understandable, but we are not persuaded the decision is appropriate. Cf. Laney,
C.
{23} The touchstone of search and seizure analysis is whether a person has a constitutionally recognized expectation of privacy. See Katz v. United States,
The Fourth Amendment protects the individual’s privacy in a variety of settings. In none is the zone of privacy more clearly defined than when bounded by the unambiguous physical dimensions of an individual’s home — a zone that finds its roots in clear and specific constitutional terms: “The right of the people to be secure in them ... houses ... shall not be violated.” That language unequivocally establishes the proposition that “[a]t the very core [of the Fourth Amendment] stands the right of a man to retreat into his own home and there be free from unreasonable governmental intrusion.” In terms that apply equally to seizures of property and to seizures of persons, the Fourth Amendment has drawn a firm line at the entrance to the house. Absent exigent circumstances, that threshold may not reasonably be crossed without a warrant.
Payton v. New York,
{24} The community caretaker exception recognizes that warrants, probable cause, and reasonable suspicion are not required when police are engaged in activities that are unrelated to crime-solving. See Davis,
{25} In balancing these interests, three distinct doctrines under the community caretaker exception have emerged: “1) the emergency aid doctrine, established in Mincey; 2) the automobile impoundment and inventory doctrine, first conceived in Cady, and later expanded upon in [South Dakota v. Opperman,
{26} [W]hile both [the community caretaker or public servant doctrine and the emergency aid doctrine] are based on an officer’s reasonable belief in the need to act pursuant to his or her “community care-taking functions,” the emergency doctrine is limited to the functions of protecting or preserving life or avoiding serious injury.
Laney,
{27} We conclude that police officers may enter a home without a warrant or consent under the emergency assistance doctrine. We recognize that the district court and the Court of Appeals based their decisions on the statement in Nemeth that “[t]he Fourth Amendment exception permitting warrantless entry into a home in the performance of community caretaking functions can be invoked only ‘when the police are not engaged in crime-solving activities.’ ”
{28} Our reading is consistent with the dual policies of encouraging police to perform caretaking functions and to obtain warrants to arrest or search. Compare Gomez,
D.
{29} Having determined that police may enter a home without a warrant to respond to a strong sense of an emergency, we now address the standards that confíne the emergency assistance doctrine. The Court in Mincey indicated that a warrantless entry and search of the home would pass constitutional muster under an objective test: whether police reasonably believed that a person within was in need of immediate aid to protect or preserve life or avoid serious injury, and the scope of the search was strictly limited to that purpose.
{30} The objective test is familiar to our search and seizure analysis. The constitutional requirement of reasonableness is tested objectively under the totality of the circumstances. Vandenberg,
{31} The objective standard for a warrantless and non-eonsensual entry into a home, however, requires a higher degree of urgency than the Nemeth decision may have conveyed. The emergency assistance doctrine applies specifically to warrantless intrusions into the home. The emergency assistance doctrine requires an emergency, a strong perception that action is required to protect against imminent danger to life or limb, an emergency that is sufficiently compelling to make a warrantless entry into the home objectively reasonable under the Fourth Amendment. Compare Mincey,
{32} Some of the factors that the court should consider are the purpose and nature of the dispatch, the exigency of the situation based on the known facts, and “the availability, feasibility and effectiveness of alternatives to the type of intrusion actually accomplished.” State v. Ferguson,
{33} The second part of the three-part Mitchell test is more controversial. Federal and state courts, including New Mexico, usually do not consider the subjective intent of an officer in a search and seizure analysis. See Whren v. United States,
{34} The primary rationale arises from the absence of a probable cause requirement in the emergency assistance doctrine. Some courts believe that subjective motives are still relevant when police do not have to show probable cause in order to ensure that such searches are not a pretext for criminal investigation. Cervantes,
[O]nly an undiscerning reader would regard these [inventory and administrative search] cases as endorsing the principle that ulterior motives can invalidate police conduct that is justifiable on the basis of probable cause to believe that a violation of law has occurred. In each case we were addressing the validity of a search conducted in the absence of probable cause. Our quoted statements simply explain that the exemption from the need for probable cause (and warrant), which is accorded to searches made for the purpose of inventory or administrative regulation, is not accorded to searches that are not made for those purposes.
Whren,
{35} Nevertheless, we recognize that emergency situations can occur during a criminal investigation. See Davis,
{36} While we do not believe it is realistic for officers to completely abandon their investigative function, we adopt the “primary motivation” standard set out in Mitchell. “[T]he protection of human life or property in imminent danger must be the motivation for the [initial decision to enter the home] rather than the desire to apprehend a suspect or gather evidence for use in a criminal proceeding.” Mitchell,
{37} “[Conditioning the availability of the emergency doctrine exception on the searching officer’s motivation is mandated by the doctrine’s rationale that the preservation of human life is paramount to the right of рrivacy protected by the Fourth Amendment.” Prober,
{38} The third part of the three-part test stated in Mitchell also is a common aspect of an objective analysis in search and seizure and community caretaker cases. See Apodaca,
{39} Wе adopt the Mitchell three-part inquiry as the relevant analysis in determining whether the emergency assistance doctrine applies to a warrantless, nonconsensua1 entry into the home. Police must have reasonable grounds to believe that there is an emergency at hand and an immediate need for their assistance for the protection of life or property; the search must not be primarily motivated by an intent to arrest a suspect or to seize evidence. Although the police need not be totally unconcerned with the apprehension of suspects or the collection of evidence, the motivation for the intrusion must be a strong sense of an emergency; and there must be some reasonable basis, approximating probable cause, to associate the emergency with the area or place to be searched. We now apply this analysis.
E.
{40} The facts known to the entering officers in this case are as follows. The deputies knew that the suspect in a stabbing incident might be headed to his home from the crime scene only a short distance away, and they were directed to his home to locate him. A second dispatcher told them that he might have sustained a wound to his head or his face. When they arrived, the door was slightly ajar, a light was on inside, it was a cold January night, and no one answered their knocks or calls. In summary, there was substantial evidence for the district court’s finding that, “the Officers entered the Defendant’s residence based on dispatch information that the Defendant might have been injured (possibly a head injury), then-own observations that his door was slightly ajar in the wintertime, and there was no response to their knocks.”
{41} These facts do not compel a conclusion that swift action was necessary to protect life or avoid serious injury. While these circumstances might suggest something is amiss, they do not add very much to the relevant inquiry. Many people purposely leave on a light even when they are away. An open door ought not be viewed as a general invitation to enter. See Ray,
{42} To justify the warrantless intrusion into a private residence under the emergency assistance doctrine, officers must have credible and specific information that a victim is very likely to be located at a particular place and in need of immediate aid to avoid great bodily harm or death. In Mitchell, for example, the police were called to a hotel to investigate a possible kidnaping.
{43} Unlike Mitchell, the officers in this case had only generalized, nonspecific information that Defendant might be inside and that he might have sustained a head or face injury. They did not know the nature or extent of the injury. They did not even know whether he was injured. There was no evidence that Defendant was at home. In light of what little the deputies actually knew, it would have been more reasonable to conduct some minimal investigation to corroborate their suspicions, rather than immediately entering the home. To better evaluate the situation, the officers easily could have contacted deputies at the scene only a short distance away. They also could have walked around the home, looked in windows, or contacted the occupants of the home on the same property. Cf. Nemeth,
{44} Neither do we think it too much of a burden for the police to corroborate generalized information before they risk intruding into a home. In the absence of an obvious life-threatening emergency, corroboration will either confirm the need for immediate emergency action, or dispel it altogether. Accordingly, considering all the circumstances known and otherwise knowable to the officers in this case, we conclude that the emergency assistance doctrine does not support their entrance into Defendаnt’s home without a warrant.
{45} We further conclude that even if the deputies had a good-faith generalized concern for Defendant’s welfare, there was substantial evidence to support the trial court’s finding that, “the facts within the entering officers’ knowledge were not sufficient to elevate their primary role to that of community caretaking.” Both deputies testified that they went to the home to locate a suspect. Although they thought the circumstances that they observed at the home were odd, at least one officer testified that he entered Defendant’s home to look for the suspect and to check on his welfare. They lacked sufficient information to compel their actions. “[T]he protection of human life or property in imminent danger must be the motivation for the search rather than the desire to apprehend a suspect or gather evidence for use in a criminal proceeding.” Mitchell,
III.
{46} We hold that a police officer or officers may enter a home without a warrant or consent pursuant to the emergency assistance doctrine as articulated in Mitchell. Applying Mitchell, we conclude that the information available to the officers did not justify the warrantless intrusion into Defendant’s home. We affirm the Court of Appeals and the trial court. The decision to suppress the evidence was appropriate under Mitchell.
{47} IT IS SO ORDERED.
Notes
. Defendant’s mother testified that she and her husband saw Defendant walking away from his home at about 8:30 p.m. when they were returning to their home, which is on the same property as Defendant's home. At about 9:00 p.m., she saw police at her son's home. Defendant agreed that it takes about 15 minutes to walk from his house to Hoover's house on Alameda where he was arrested.
. Sanchez testified that the sergeant most likely relayed any information to dispatch.
. While Defendant indicated that the New Mexico constitution was violated by these searches, he did not argue that our state constitution offered more protection than the federal constitution. We limit our discussion to a Fourth Amendment analysis. State v. Gomez,
. We note a distinction between the emergency assistance doctrine and the exception for exigent circumstances that also excuses a warrant. Davis,
