We granted Michael Carroll’s petition for a writ of certiorari to consider whether, under the exigent circumstances exception to the warrant requirement of the Fourth Amendment, the Carroll County Deputy Sheriffs’ belief that a burglary had *726recently been committed in Carroll’s home justified their warrantless entry into his home. Like the Court of Special Appeals, we conclude that the entry was lawful under the exigent circumstances exception to the warrant requirement. Accordingly, we affirm the judgment of the Court of Special Appeals.
I.
Michael Carroll was indicted in the Circuit Court for Carroll County on August 27, 1992, on the charges of manufacturing a controlled dangerous substance, possession of a controlled dangerous substance with intent to distribute, maintaining a common nuisance and possession of a controlled dangerous substance and drug paraphernalia in violation of Maryland Code (1957, 1992 RepLVol.) Art. 27, §§ 286, 287 & 287A. Carroll filed a timely motion to suppress the physical evidence the Carroll County Sheriffs Department seized pursuant to the search and seizure warrant it executed on his residence. The warrant was issued to the deputy sheriffs following their warrantless entry into Carroll’s home and was based on their observations made during their initial entry.
The facts which were produced at the suppression hearing were set forth in the affidavit in support of the search and seizure warrant executed at Carroll’s residence. No witnesses testified and no other evidence was introduced at the suppression hearing.1 The affidavit revealed, in pertinent part, the following:
*727[O]n July 24, 1992, [Deputy First Class Mark Gonder (Gonder) ] assisted the Carroll County Sheriffs Department in an attempt to locate and arrest one, Joe Hudson, who had escaped from Work Release at the Detention Center. [Gonder] and Dfc’s Lust and Prise went to [6047 Oakland Mills Road, Eldersburg, Maryland] believing that the suspect Hudson might be hiding there. [Gonder] contacted a resident of the upstairs apartment, Terry Lynn Penn. Penn stated Hudson had been there last night at approximately 2300 hrs., but he had left. Penn then gave [Gonder] and other officers permission to search the residence. Upon going to the rear of the residence [Gonder] observed the rear apartment door. The screen door was open and a pane of glass was missing from the door’s window and the door was approximately two inches open, it appeared that someone made forced entry into the apartment. [Gonder] then contacted Miss Penn and asked her if the basement apartment was secured. She stated that it was and that the occupant Mike Carroll wouldn’t be home until Saturday or Sunday (07-25,26-92). [Gonder] and Dfc Prise then went to the downstairs apartment. [Gonder] identified himself and entered the apartment, continuing to announce his presence. There was no response to [Gonder’s] calls. Once inside of the apartment, [Gonder] observed several marijuana plants growing in an area of the apartment. The apartment was unoccupied and the evidence was not disturbed. The apartment was secured by Dfc. Jay Prise of the Carroll County Sheriffs Department.
Deputy First Class Gonder then left the premises to secure a search and seizure warrant. On the same day, the Circuit Court for Carroll County issued a search and seizure warrant to the deputy sheriffs. At 4:00 p.m. that afternoon, they executed the warrant and seized controlled dangerous substances, paraphernalia and firearms from Carroll’s apartment.
*728Based upon these facts, the circuit court granted Carroll’s motion to suppress. The State appealed this ruling to the Court of Special Appeals pursuant to Maryland Code (1974, 1989 RepLVol.) § 12-302 of the Courts and Judicial Proceedings Article. The Court of Special Appeals reversed the order of the trial court and remanded the case for further proceedings. State v. Carroll, 97 Md.App. 234, 629 A.2d 1247 (1993). We granted certiorari.
The State argues that the deputy sheriffs had probable cause to believe that a burglary was in progress or had recently been committed and that exigent circumstances justified their initial warrantless entry. Carroll contends that the initial warrantless entry did not fall within any of the recognized exceptions to the warrant requirement and, therefore, violated his rights under the Fourth Amendment.
II.
The validity of the search and seizure warrant issued to the Carroll County Sheriffs Department hinges on the legality of the initial warrantless entry into Carroll’s residence. Evidence derived as a result of a prior illegal search or seizure cannot be used as a basis for probable cause in a subsequent application for a search and seizure warrant. Everhart v. State, 274 Md. 459, 481, 337 A.2d 100, 113 (1975); Carter v. State, 274 Md. 411, 438, 337 A.2d 415, 431 (1975). Because the State does not dispute that the search and seizure warrant was based solely upon the deputies’ observations made during the initial warrantless entry, the State bears the burden of proving that the initial warrantless entry was justified, People v. Duncan, 42 Cal.3d 91, 227 Cal.Rptr. 654, 656, 720 P.2d 2, 5 (1986), and because the State asserts that the initial warrantless entry was justified under the exigent circumstances exception to the warrant requirement, it bears the burden of proving the existence of exigent circumstances. Coolidge v. New Hampshire, 403 U.S. 443, 455, 91 S.Ct. 2022, 2032, 29 L.Ed.2d 564, 576 (1971); McMillian v. State, 325 Md. 272, 282, 600 A.2d 430, 435 (1992).
*729The Fourth Amendment to the United States Constitution2 prohibits unreasonable searches and seizures and provides that no warrants shall issue without probable cause. The physical entry into the home is the chief evil against which the wording of the Fourth Amendment is directed, Welsh v. Wisconsin, 466 U.S. 740, 748, 104 S.Ct. 2091, 2097, 80 L.Ed.2d 732, 742 (1984); United States v. United States District Court, 407 U.S. 297, 313, 92 S.Ct. 2125, 2134, 32 L.Ed.2d 752, 764 (1972), and the warrant requirement, which is imposed on government agents and officers who seek to enter for the purposes of search, seizure or arrest, is a principal protection against unreasonable intrusions into private dwellings. Welsh, 466 U.S. at 748, 104 S.Ct. at 2097, 80 L.Ed.2d at 742; see also Payton v. New York, 445 U.S. 573, 586 & n. 24, 100 S.Ct. 1371, 1380 & n. 24, 63 L.Ed.2d 639, 650 & n. 24 (1980).
The Fourth Amendment prohibits only those searches and seizures that are unreasonable. Florida v. Jimeno, 500 U.S. 248, 249-50, 111 S.Ct. 1801, 1803, 114 L.Ed.2d 297, 302 (1991); McMillian, 325 Md. at 281, 600 A.2d at 434. Moreover, the Supreme Court has recognized that a warrantless search and seizure does not violate the Fourth Amendment when law enforcement officers are faced with exigent circumstances such that there is a “compelling need for official action and no time to secure a warrant.” Michigan v. Tyler, 436 U.S. 499, 509, 98 S.Ct. 1942, 1949, 56 L.Ed.2d 486, 498 (1978) (burning building); See also United States v. Santana, 427 U.S. 38, 42-43, 96 S.Ct. 2406, 2409-10, 49 L.Ed.2d 300, 305-06 (1976) (hot pursuit); Warden v. Hayden, 387 U.S. 294, 298-300, 87 S.Ct. 1642, 1645-46, 18 L.Ed.2d 782, 787-88 (1967) (hot pursuit and danger to human life); Schmerber v. California, 384 U.S. 757, 770-71, 86 S.Ct. 1826, 1835-36, 16 L.Ed.2d 908, 919-20 (1966) (imminent destruction of evanescent evidence); *730Ker v. California, 374 U.S. 23, 37-41, 83 S.Ct. 1623, 1632-34, 10 L.Ed.2d 726, 740-42 (1963) (destruction of evidence).
On several occasions, this Court has considered the applicability of the exigent circumstances exception to various situations involving warrantless entries, searches and seizures. See Oken v. State, 327 Md. 628, 612 A.2d 258 (1992) (warrant-less search of home upheld where police had reason to believe injured person or suspects may have been inside), cert. denied, — U.S. -, 113 S.Ct 1312, 122 L.Ed.2d 700 (1993); McMillian v. State, supra (warrantless entry of private social club held unlawful where no risk of destruction or removal of evidence existed); Stackhouse v. State, 298 Md. 203, 468 A.2d 333 (1983) (presence of defendant’s sister did not pose risk of destruction or removal of evidence to justify warrantless search of defendant’s attic); Lebedun v. State, 283 Md. 257, 390 A.2d 64 (1978) (emergency situation justified warrantless search of motel room to protect rescue squad and to investigate possible criminal activity); Nilson v. State, 272 Md. 179, 321 A.2d 301 (1974) (warrantless entry of apartment upheld where police had reason to believe that armed robbers were inside and that delay might permit escape); Davis v. State, 236 Md. 389, 204 A.2d 76 (1964) (where police found dead person in defendant’s back yard, warrantless search of his home was justified to determine whether more than one person had been victimized), cert. denied, 380 U.S. 966, 85 S.Ct. 1113, 14 L.Ed.2d 156 (1965).
We recently had occasion to consider the emergency exception to the warrant requirement in Oken v. State, supra. In Oken, a Baltimore County police officer went to Oken’s townhouse in response to a “suspicious condition” radio call. 327 Md. at 643, 612 A.2d at 265. When he arrived at the scene, the officer was met by the complainant. The complainant told the officer that she believed that her sister was missing and that some harm had come to her. The complainant’s belief was based upon the fact that when she arrived at Oken’s house, the door was ajar, the house was in disarray and blood was on the floor near the entrance. Id. at 643-44, 612 A.2d at 265. Without a warrant, the officer entered the residence “ ‘to *731see if there was anyone injured in the house, [and] to look for any suspect.’ ” Id. at 644, 612 A.2d at 265. Writing for the Court, Judge Karwacki stated: “Based on our independent constitutional appraisal of this uncontradicted evidence at the suppression hearing, we hold that Sergeant Branham’s decision to enter Oken’s home was both reasonable and justifiable under the emergency exception to the warrant requirement.” Id. at 646, 612 A.2d at 267. Oken was premised on the rationale that the possible need to render medical aid and to determine if a suspect or intruder remained inside the residence constituted exigent circumstances and an emergency.
Until today we have not considered whether, under the exigent circumstances exception to the warrant requirement of the Fourth Amendment, law enforcement officers may enter a home without a warrant for the purpose of investigating a probable burglary. Although the Supreme Court has not addressed this specific issue, the numerous state and federal courts which have considered this question have all held that warrantless entries are justified on the basis of exigent circumstances when the police reasonably believe that a burglary is in progress or has recently been committed. See United States v. Johnson, 9 F.3d 506, 509-10 (6th Cir.1993); Reardon v. Wroan, 811 F.2d 1025, 1029-30 (7th Cir.1987); United States v. Valles-Valencia, 811 F.2d 1232, 1236 (9th Cir.), amended on other grounds, 823 F.2d 381 (9th Cir.1987); United States v. Singer, 687 F.2d 1135, 1144 (8th Cir.1982), adopted in relevant part, 710 F.2d 431 (8th Cir.1983); Mann v. Cannon, 731 F.2d 54, 59 & n. 5 (1st Cir.1984); United States v. Estese, 479 F.2d 1273, 1274 (6th Cir.1973); Carter v. State, 405 So.2d 957, 960 (Ala.Cr.App.), cert. denied, 405 So.2d 962 (Ala.1981); Duncan, 227 Cal.Rptr. at 656-58, 720 P.2d at 5-6; People v. Unruh, 713 P.2d 370, 379-80 (Colo.), cert. denied, 476 U.S. 1171, 106 S.Ct. 2894, 90 L.Ed.2d 981 (1986); People v. Berow, 688 P.2d 1123, 1126-27 (Colo.1984); State v. Mann, 440 So.2d 406, 408 (Fla.Dist.Ct.App.1983); Commonwealth v. Fiore, 9 Mass.App.Ct. 618, 403 N.E.2d 953, 954-56, cert. denied, 449 U.S. 938, 101 S.Ct. 336, 66 L.Ed.2d 160 (1980); In re Forfeiture of $176,598, 443 Mich. 261, 505 *732N.W.2d 201, 206 (1993); State v. Metz, 422 N.W.2d 754, 756-57 (Minn.Ct.App.1988); State ex rel. Zander v. District Court, 180 Mont. 548, 591 P.2d 656, 659 (1979); State v. Crabtree, 655 S.W.2d 173, 179 (Tenn.Crim.App.1983); State v. Bakke, 44 Wash.App. 830, 723 P.2d 534 (1986), cert. denied, 107 Wash.2d 1033 (1987); cf. United States v. Erickson, 991 F.2d 529 (9th Cir.1993); United States v. Selberg, 630 F.2d 1292, 1295-96 (8th Cir.1980); State v. Bramson, 94 Or.App. 374, 765 P.2d 824, 826 (1988); State v. Muir, 67 Wash.App. 149, 835 P.2d 1049, 1051-53 (1992).
The Massachusetts Appeals Court considered the exigency-circumstances exception in determining the lawfulness of a warrantless entry into a home in Commonwealth v. Fiore, supra. Law enforcement officers responded to an informant’s tip that there was a possibility of narcotics, guns and a housebreak at a location within the town of Brimfield. 403 N.E.2d at 954. When they arrived at that location, the officers approached the defendant’s cottage and noticed that the outside door to the cottage had been torn off and the inner door was ajar. Id. An officer entered the cottage and, although finding no one inside, discovered hashish stored in a hole in the floor. Id. The next day the officer applied for and received a warrant to search the cottage. Id. In holding the initial entry lawful and the subsequently issued warrant to be valid, the court stated:
It seems clear to us that a house break without more—as set out in the affidavit—raises the possibility of danger to an occupant and of the continued presence of an intruder and indicates the need to secure the premises. In such circumstances “[t]he right of the police to enter and investigate in an emergency without the accompanying intent to either search or arrest is inherent in the very nature of their duties as peace officers.”
Fiore, 403 N.E.2d at 954-55 (quoting United States v. Barone, 330 F.2d 543, 545 (2d Cir.), cert. denied, 377 U.S. 1004, 84 S.Ct. 1940, 12 L.Ed.2d 1053 (1964)).
*733In State ex rel. Zander v. District Court, supra, the Supreme Court of Montana was also confronted with the question of whether there were exigent circumstances to justify a warrantless entry into a dwelling where the deputy sheriffs responded to a report of a burglary in progress. 591 P.2d at 658. They found the front door unlocked. They were informed that no one was home and that the door was always locked when the occupants were away. Id. Although the deputies could not see anyone inside and saw nothing suspicious outside the residence beyond the unlocked front door, the court upheld the entry. Zander, 591 P.2d at 659. The court said:
The officers at the time of entry were engaged in protecting the Zander property. This included determining whether any burglars were hiding inside the house. A prudent officer was warranted in believing that a felony had been attempted or committed and in concluding that prompt entry into the home was necessary to protect the property and determine whether the suspect was hiding in the house.
Id. (citations omitted).
In a similar vein, in his treatise on the law of search and seizure, Professor LaFave notes:
Police may also enter private property for the purpose of protecting the property of the owner or occupant or some other person. One possibility is where the police reasonably believe that the premises have recently been or are being burglarized. Thus, police entry is justified on the basis of a breaking and entering call to police plus the discovery of an open door which bore evidence of being pried open, of activation of a burglar alarm at those premises, of the observation of lights on within and strange cars parked about a house whose occupants a neighbor says are on vacation, and of a neighbor’s report that strangers were seen coming from a cabin in an area where many cabins had recently been broken into.
*7342 Wayne R. LaFave, Search and Seizure: A Treatise on the Fourth Amendment, § 6.6(b), at 706-07 (2d ed. 1987) (footnotes omitted).
In the case sub judice, the Court of Special Appeals correctly noted that courts of other jurisdictions that have addressed this issue are in general agreement with the view that where police have probable cause to believe that a burglary has been committed recently or is in progress, a warrantless search of the residence to see if the intruder is within, or to ascertain whether there are people in need of assistance, does not offend the Fourth Amendment. Carroll, 97 Md.App. at 238, 629 A.2d at 1249. We hold that when law enforcement officers have probable cause to believe that a burglary is either in progress or recently has been committed, the exigencies of the situation permit the officers to enter the premises without a warrant to search for intruders and to protect an occupant’s property. Just as a burning building creates an exigency that justifies a warrantless entry by fire officials to fight the blaze, a recent or ongoing burglary may create an exigency that justifies a warrantless entry by law enforcement officers to search for intruders and to protect property. Law enforcement officers encountering such circumstances should not be forced to retreat to obtain a search warrant and to allow burglars to complete their crimes undisturbed. Singer, 687 F.2d at 1144; see also Johnson, 9 F.3d at 510.
We are mindful that the responsibility of the police to investigate burglaries must be balanced against the serious invasions of privacy such entries and searches entail. See Johnson, 9 F.3d at 510; Erickson, 991 F.2d at 533. We further recognize that courts must “be vigilant to ensure that the rationale of protecting private property is not employed as a subterfuge to seek out evidence of criminal conduct.” People v. Gardner, 121 Ill.App.3d 464, 76 Ill.Dec. 761, 766, 459 N.E.2d 676, 681 (1984); see also Crabtree, 655 S.W.2d at 179 (defendant entitled to show police created mock burglary as excuse to make unauthorized entry and search of his busi*735ness); 2 Wayne R. LaFave, supra, § 6.6(b), at 708. The common thread running through the cases in which the courts have found exigent circumstances to exist is that the law enforcement officers were not using the situation as an excuse to conduct an unlawful search for evidence. See Nilson, 272 Md. at 190-91, 321 A.2d at 307 (“[T]he arrests were not a mere pretext to conduct a warrantless search of the premises for the fruits and instrumentalities of the crime.”). The entry cannot be made on the pretext to search for contraband or illegal activity rather than to look for suspects and to preserve an occupant’s property. Bakke, 723 P.2d at 539. Furthermore, the scope of the limited warrantless intrusion we condone today must not exceed that justified by the exigencies presented. Johnson, 9 F.3d at 510; see also Zander, 591 P.2d at 659; 2 Wayne R. LaFave, supra, § 6.6(a), at 705-06. Thus, when acting on the reasonable belief that a burglary is in progress or has recently been committed, law enforcement officers may not deviate from the original purposes of their search. Berow, 688 P.2d at 1127-28.
III.
In determining whether the Carroll County Deputy Sheriffs acted under circumstances sufficient to justify the initial warrantless search of Carroll’s residence, we must consider what they reasonably believed at the time of their warrantless entry, Ker, 374 U.S. at 40 n. 12, 83 S.Ct. at 1633 n. 12, 10 L.Ed.2d at 742 n. 12; Johnson v. United States, 333 U.S. 10, 17, 68 S.Ct. 367, 370-71, 92 L.Ed. 436, 442 (1948); McMillian, 325 Md. at 282, 600 A.2d at 435, and specifically whether they had probable cause to believe that there had been a recent forcible entry into Carroll’s apartment or to believe an intruder was still on the premises. In Doering v. State, 313 Md. 384, 545 A.2d 1281 (1988), we stated that “probable cause is a nontechnical conception of a reasonable ground for belief of guilt, requiring less evidence for such belief than would justify conviction but more evidence than that which would arouse a mere suspicion.” Id. at 403, 545 A.2d at 1290. We further recognized:
*736“In dealing with probable cause, however, as the very name implies, we deal with probabilities. These are not technical; they are the factual and practical considerations of everyday life on which reasonable and prudent men, not legal technicians, act.
Because many situations which confront officers in the course of executing their duties are more or less ambiguous, room must be allowed for some mistakes on their part. But the mistakes must be those of reasonable men, acting on facts leading sensibly to their conclusions of probability. The rule of probable cause is a practical, nontechnical conception affording the best compromise that has been found for accommodating ... often opposing interests. Requiring more would unduly hamper law enforcement. To allow less would be to leave law-abiding citizens at the mercy of the officers’ whim or caprice.”
Id. at 403, 545 A.2d at 1290-91 (quoting Brinegar v. United States, 338 U.S. 160, 175-76, 69 S.Ct. 1302, 1310-11, 93 L.Ed. 1879 (1949)).
A.
When the question before us is whether a constitutional right has been violated, we are required to make our own independent constitutional appraisal by applying the law to the facts of the particular case. Riddick v. State, 319 Md. 180, 183, 571 A.2d 1239, 1240 (1990). Carroll contends that probable cause did not exist for the deputy sheriffs to believe that a burglary had occurred or was in progress and that, at best, the facts of this case give rise to a suspicion that a misdemeanor housebreaking had occurred. At oral argument, Carroll argued that the deputy sheriffs could not assume that a breaking had occurred at nighttime or had occurred with an intent to steal so as to elevate the apparent crime from a misdemeanor to a felony. The State argues that the police were clearly presented with circumstances evidencing a “bur*737glary-type”3 crime under Maryland law. Alternatively, the State argues that whether the offense was a misdemeanor or a felony is irrelevant; the sheriffs had probable cause to believe that there was a recent breaking into Carroll’s apartment and they were entitled to investigate. We agree with the State. The characterization of the offense as a misdemeanor or a felony has no bearing on whether the deputy sheriffs could enter the apartment. In either case, the breaking of the house under those circumstances was a criminal offense giving the deputy sheriffs reasonable grounds to believe that the breaking was probably a common law burglary or statutory housebreaking.
The determination of whether exigent circumstances exist must be made on a case by case basis and is determined by the individual facts of each case. We are in agreement with the Court of Special Appeals which held that the deputies’ entry into Carroll’s apartment was reasonable under the particular facts of this case. Carroll, 97 Md.App. at 242, 629 A.2d at 1251. As Judge Bishop wrote:
It is clear that the deputies had a reasonable basis, approximating probable cause, to believe that Carroll’s apartment either had recently been or was in the process of being broken into. Both the screen door and the wooden door were open. One of the four panes of glass in the wooden door was missing. Penn advised Gonder that the occupant of the apartment was not home, that he was not expected back until the following day or the day after, and that the apartment was secured. These facts establish the probability that someone forcibly entered the apartment.
Carroll, 97 Md.App. at 241, 629 A.2d at 1251.
In the sworn application for the search warrant, Deputy First Class Gonder stated that it appeared that someone made *738forced entry into the apartment. Whether the deputy sheriffs entered under the subjective belief that Carroll’s apartment had been broken into by Joe Hudson or by some other intruder is of no consequence to the outcome of this case.4 In either situation, the deputy sheriffs reasonably believed that a forced entry into Carroll’s apartment was recent and that an intruder /may still have been present.
We find the facts in the cases in which courts have declined to find exigent circumstances to be distinguishable. In United States v. Selberg, supra, a neighbor called the police to report a burglary at the defendant’s home, telling them that he saw the defendant drive away from his home the day before "with the front door to the home open. 630 F.2d at 1294. Unlike the case sub judice, the officer in Selberg:
had no reason to believe a crime had been or was being committed and that entry was necessary to protect Selberg’s property. He knew [the neighbor] saw Selberg leave with the door open. No one had since reported any suspicious activity, and the trailer showed no signs of any criminal activity.
Id. at 1296. Similarly, in State v. Bramson, supra, the Court of Appeals of Oregon held that the police did not have probable cause to believe that a' burglary had been or was being committed because the open door to the defendant’s residence “was at least as consistent with the occupants’ neglect as it was with a burglary.” 765 P.2d at 826.
Carroll contends that the facts in the cases from other jurisdictions upholding warrantless entries under the exigent circumstances of a recent or ongoing burglary “go far beyond” this case with respect to both probable cause and exigency. We disagree. Although this case did not involve a call from a person reporting a breaking into Carroll’s residence, it did involve an emergency presented by the search for an escaped *739convict known to be in the immediate location within the past few hours, a broken window pane, a condition which appeared to the deputy to indicate a forced entry into the apartment, an open door leaving the premises unsecured, knowledge that the occupant of the residence was away for the next day or two, and a representation by an immediate neighbor that the residence was left in a secure condition. The discovery of this unlocked residence under these circumstances amounts to a compelling urgency to make a prompt inspection of the apartment. The presence or absence of suspects within Carroll’s apartment could not be ascertained without entering the premises. See Bakke, 723 P.2d at 538. Because it was possible that the burglar was still inside, it was not reasonable to merely shut the door or to attempt to visualize any activity through the doors without entering.
Any of the facts discussed above, taken in isolation, may well have been an insufficient foundation for probable cause to believe that there had been a recent forcible entry into Carroll’s apartment. In light of the totality of these facts, however, we hold that the deputy sheriffs had the requisite probable cause and exigency to conduct the initial warrantless entry.
B.
A warrantless search must be “strictly circumscribed by the exigencies which justify its initiation.” Terry v. Ohio, 392 U.S. 1, 26, 88 S.Ct. 1868, 1882, 20 L.Ed.2d 889, 908 (1968). Here, the deputy sheriffs’ actions upon entering the apartment were consistent with their purpose in entering. They announced their presence and, while checking to see whether anyone was inside, they observed the marijuana plants. They left the evidence undisturbed, secured the apartment and departed to make application for a search and seizure warrant. The entry was not conducted with an eye toward Carroll’s prosecution, but rather to investigate a forced entry and to secure the premises against possible damage or future entry. As the Court of Special Appeals noted: “[Tjhere is nothing in the record to suggest that the deputies entered the apartment *740for any reason other than to investigate the suspicious condition. Indeed, the deputies had no reason to suspect that they would find contraband within the apartment.” Carroll, 97 Md.App. at 241, 629 A.2d at 1251. Furthermore, the record does not indicate and Carroll does not argue that the investigation within the apartment exceeded a search reasonably calculated to disclose an intruder’s presence. Their actions within were clearly circumscribed by the exigencies that justified the intrusion.
Based on what they saw in the apartment, the deputies sought and obtained a search and seizure warrant. Only then did they seize the evidence of controlled dangerous substances and paraphernalia. The fact that this search warrant was based upon observations from the initial warrantless entry does not render the search and seizure pursuant to the warrant unlawful. Because they were lawfully in the apartment pursuant to the exigent circumstances exception to the warrant requirement, their observations were proper grounds for a search warrant under the plain view doctrine. Horton v. California, 496 U.S. 128, 110 S.Ct. 2301, 110 L.Ed.2d 112 (1990); Coolidge, 403 U.S. at 464-73, 91 S.Ct. at 2037-42, 29 L.Ed.2d at 581-87.
Having found the initial entry and search of Carroll’s apartment reasonable under the Fourth Amendment, we hold that the search and seizure warrant subsequently issued to the Carroll County Sheriffs Department was valid and' the trial court improperly granted Carroll’s motion to suppress.5 Accordingly, we affirm the judgment of the Court of Special Appeals.
JUDGMENT OF THE COURT OF SPECIAL APPEALS AFFIRMED. CASE REMANDED TO THAT COURT WITH THE DIRECTION TO REMAND THE CASE TO *741THE CIRCUIT COURT FOR CARROLL COUNTY FOR FURTHER PROCEEDINGS. COSTS IN THE COURT OF SPECIAL APPEALS AND IN THIS COURT TO BE PAID BY PETITIONER.
. A review of the decision to issue a search warrant is normally confined to the four comers of the affidavit and the warrant. State v. Lee, 330 Md. 320, 326, 624 A.2d 492, 495 (1993). Because the claim here was that the warrantless actions of the deputy sheriffs before the issuance of the search warrant violated Carroll’s rights under the Fourth Amendment, the motion court properly could have received evidence beyond the factual predicate set out in the application for the warrant. Everhart v. State, 274 Md. 459, 479, 337 A.2d 100, 111 (1975). At the motions hearing, however, the parties in this case chose to rely solely on the affidavit and the warrant. In an attempt to create a conflict in the observations of the deputy sheriffs, Carroll now presents this Court with a supplemented report prepared by one of the deputies *727present during the initial entry into Carroll’s residence. Because the record at the suppression hearing is the exclusive source of the facts for our review, Lee v. State, 311 Md. 642, 648, 537 A.2d 235, 237 (1988), we do not take this supplemental report into consideration.
. The Fourth Amendment states:
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
. At the time of this offense, unauthorized entry into a dwelling was proscribed as common law burglary, breaking a dwelling with intent to steal or commit a felony, and breaking and entering a dwelling house of another. Maryland Code (1957, 1992 Repl.Vol.) Art. 27, §§ 29, 30 & 31A. Effective October 1, 1994, all unauthorized entries into dwellings are termed burglary. See Ch. 712 of the Acts of 1994.
. The State aptly notes that because escapees generally need money, supplies, and places to hide, it would, however, have been reasonable for the deputy sheriffs to believe that Joe Hudson may have broken into Carroll's apartment.
. In light of this holding, we need not address the State’s argument with respect to the application of the "community caretaking function” exception to the warrant requirement to the facts of this case or the arguments with respect to the existence of an independent source for probable cause and the inevitable discovery doctrine.