¶1Based on an informantâs tip, as well as police observation of three controlled drug purchases and additional surveillance, police obtained a warrant to search the defendantâs apartment. They found a firearm, as well as significant quantities of heroin and cocaine. On this basis, the defendant was *722charged with various drug and firearm offenses.
¶2For the reasons that follow, we conclude that the affidavit supporting the search warrant set out sufficient facts to establish probable cause to search the defendantâs apartment. We therefore reverse the order allowing the motion to suppress.
¶31. Facts and prior proceedings. On March 28, 2008, Officer Gary R. Mercurio of the Brockton police department sought a search warrant for â957 Warren Ave. Apt. # 3 (3rd Floor) Brockton.â In support of this warrant, Mercurio filed a twelve-page affidavit. Because the sole issue is the sufficiency of that affidavit, we recite in detail the facts it sets forth. See Commonwealth v. Donahue, 430 Mass. 710, 712 (2000).
¶4In March, 2008, the affiant, Mercurio, along with other Brock-ton officers, began a drug investigation based on a tip from a confidential informant. According to the informant â who had âproven [his
¶5In March, 2008, police observed three controlled purchases of heroin by the informant from the defendant.
¶6Using their police computer records, the officers identified Nana as the defendant. The registered owner of the Honda Accord was listed as the defendantâs mother, but the defendantâs name was in the record of a motor vehicle stop initiated by the Brockton police department. The defendantâs address in the records was listed as â957 Warren Ave Apt. #3 Brockton, Massachusetts.â
¶7In addition, between the second and third controlled purchases, the officers conducted three days of sporadic surveillance at 957 Warren Avenue. Officers noticed that the Honda Accord remained parked in the driveway during this time period and that, while it was in the driveway, the lights in the third-floor apartment were on. During their surveillance, the officers did not see either the defendant or any other individual enter or leave the apartment.
¶8On March 27, 2008, Mercurio investigated the computer access records of the electricity company providing service to the apartment. The electricity statement for 957 Warren Avenue, apartment no. 3, was in the defendantâs name, and the accompanying telephone number was identical to the one that the informant had called during the three controlled purchases. The same day, two officers responded to 957 Warren Avenue for identification purposes, and spoke with a Hispanic female who identified herself as the defendant. She told the officers that she lived at that address.
¶9The next day, March 28, 2008 (two days after the third controlled purchase), Mercurio filed an affidavit in support of a search warrant for 957 Warren Avenue, apartment no. 3, in Brockton.
¶10The defendant moved, under both the Fourth Amendment to *725the United States Constitution and art. 14 of the Massachusetts Declaration of Rights, to suppress all items seized pursuant to execution of the warrant, arguing that âthe affidavit failed to establish the requisite nexus between alleged drug distribution and the location of the search.â
¶112. Discussion, a. Standard of review. The facts contained in the affidavit, and the reasonable inferences therefrom, must âdemonstrate probable cause to believe that evidence of the crime will be found in the place to be searched.â Commonwealth v. Jean-Charles, 398 Mass. 752, 757 (1986), citing Commonwealth v. Upton, 394 Mass. 363, 370 (1985). Because this is a question of law, âwe review the motion judgeâs probable cause determination de novo.â Commonwealth v. Long, 454 Mass. 542, 555 (2009), citing United States v. Kelley, 482 F.3d 1047, 1051 (9th Cir. 2007), cert. denied, 552 U.S. 1104 (2008).
¶12b. Nexus. Under both the Fourth Amendment and art. 14, a search warrant may issue only on a showing of probable cause. See Commonwealth v. Valerio, 449 Mass. 562, 566 (2007). This probable cause inquiry requires a ânexus between the items to be seized and the place to be searched.â Commonwealth v. Cinelli, 389 Mass. 197, 213, cert. denied, 464 U.S. 860 (1983). When the place to be searched is a residence, âthere must be specific information in the affidavit, and reasonable inferences a magistrate may draw, to provide âa sufficient nexus between the defendantâs drug-selling activity and [her] residence to establish *726probable cause to search the residence.â â Commonwealth v. Pina, 453 Mass. 438, 440-441 (2009), quoting Commonwealth v. OâDay, 440 Mass. 296, 304 (2003). To satisfy this ânexusâ requirement, and thus the probable cause standard, the affidavit âmust provide a substantial basis for concluding that evidence connected to the crime will be found on the specified premises.â Commonwealth v. Donahue, 430 Mass. 710, 712 (2000).
¶13In our recent opinion in Commonwealth v. Escalera, 462 Mass. 636, 643 (2012), while acknowledging that âeach case presents its own facts,â we sought to provide guidance on the strictures of the ânexusâ requirement. As pertinent here, in that case, after a full review of our prior holdings, we clarified that even â[a] single observation of a suspect leaving [her] home for a drug deal may also support an inference that drugs will be found in the home where it is coupled with other information.â Id. at 644. Contrast Commonwealth v. Pina, supra at 442. In applying this rule, we concluded in that case that police observations of four controlled drug purchases, which confirmed details provided by a confidential informant, as well as additional police surveillance of a suspectâs residence, established probable cause to search the residence. Commonwealth v. Escalera, supra at 645-646.
¶14Given both the police observations of three drug purchases and the informantâs tip, considered in light of Commonwealth v. Escalera, supra,there was a sufficient nexus between the defendantâs drug-selling activities and her residence to establish probable cause to search that residence.
¶15i. Direct police observations. The affidavit, on its face, presented sufficient evidence of a single instance where the police observed the defendant leave her home
¶16That officers did not follow the defendant from the moment of her departure from her residence to her arrival at the location of the sale does not alter our conclusion. See Commonwealth v. Luthy, 69 Mass. App. Ct. 102, 107 (2007). âWe agree with the Appeals Court that the transaction witnessed by the informant was susceptible of other interpretations [than the presence of drugs in the defendantâs apartment, but] ... the affidavit must only establish probable cause, not proof beyond a reasonable doubt.â Commonwealth v. Byfield, 413 Mass. 426, 430-431 (1992).
¶17The additional observations of the officers, as well as the informantâs tip, provided âother informationâ for a conclusion that the probable cause standard had been met. In addition to the aforementioned occasion on which the officers observed the defendant leave from her home in the direction of a controlled purchase, the officers twice followed the defendant from the site of a controlled purchase directly to her home. The defendant was the only person in the vehicle on both trips, and made no stops en route on either occasion.
¶18ii. Informantâs statement. Finally, the statement provided by *729the confidential informant, that the defendant âsometimes states that she has to go home to retrieve the heroin prior to their meeting,â contributes to the probable cause determination. For statements of confidential informants to be used in the assessment of probable cause under art. 14, the Commonwealth must satisfy the Aguilar-Spinelli test. See Spinelli v. United States, 393 U.S. 410 (1969); Aguilar v. Texas, 378 U.S. 108 (1964). â[T]he Commonwealth must demonstrate some of the underlying circumstances from which (a) the informant gleaned his information (the âbasis of knowledgeâ test), and (b) the law enforcement officials could have concluded the informant was credible or reliable (the âveracityâ test).â Commonwealth v. Cast, 407 Mass. 891, 896 (1990).
¶19Here, the informantâs basis of knowledge was apparent on the face of the affidavit: during previous transactions, he directly heard the defendantâs statements concerning her need to go home to procure drugs for sale. Such direct receipt of information satisfies the basis of knowledge test. See Commonwealth v. Allen, 406 Mass. 575, 578 (1990), citing Commonwealth v. Parapar, supra at 322 (âFirst-hand receipt of information through personal observation satisfies the basis of knowledge prong of Aguilar-Spinelliâ).
¶20*730As to the informantâs veracity, this prong was satisfied by the police corroboration of the details provided by the informant through observation of three controlled drug purchases. â[A]n informantâs detailed tip, plus independent police corroboration of those details, . . . can compensate for deficiencies in either or both prongs of the Aguilar-Spinelli standard, and thus satisfy the art. 14 probable cause requirement.â Commonwealth v. Cast, supra at 896. The informantâs description of the defendantâs method of operation closely matched the practice corroborated by the police in three controlled purchases, thus establishing the informantâs veracity. See Commonwealth v. Escalera, 462 Mass. 636, 645 n.8 (2012); Commonwealth v. Blake, 413 Mass. 823, 828-829 (1992). Contrast Commonwealth v. Mubdi, 456 Mass. 385, 397 (2010) (corroboration of only âinnocent factsâ described by informant do not contribute to veracity).
¶21Because the informant satisfied the two prongs of Aguilar-Spinelli (basis of knowledge and veracity), the informantâs statement that the defendant had described her need to go home to procure drugs for sale may properly be considered in assessing probable cause.
¶22Accordingly, the information provided in the affidavit established a sufficient nexus to the defendantâs apartment to support a finding of probable cause that contraband related to drug sales would be found in the location searched. The order allowing the defendantâs motion to suppress the contraband is reversed. The case is remanded to the Superior Court for further proceedings consistent with this opinion.
¶23So ordered.
¶24The drug charges include trafficking in twenty-eight to one hundred grams of cocaine, G. L. c. 94C, § 32E (b), and trafficking in twenty-eight to one hundred grams of heroin, G. L. c. 94C, § 32E (c), with each charge coupled with a corresponding school zone violation, G. L. c. 94C, § 32J. The firearm charges include possession of a large capacity firearm, G. L. c. 269, § 10 (m), possession of a firearm with the serial number defaced, G. L. c. 269, § 11C, possession of a firearm without a firearm identification card, G. L. c. 269, § 10 (h), and improper storage of a firearm, G. L. c. 140, § 131L.
¶25To protect confidentiality, the affidavit uses âitâ in reference to the informant. We use the male pronoun for convenience. See Commonwealth v. Shaughessy, 455 Mass. 346, 348 n.4 (2009).
¶26The procedure followed for each of these controlled purchases was consistent with that described by our case law. See Commonwealth v. Desper, 419 Mass. 163, 168 (1994), and cases cited.
¶27The field tests conducted on the substance received by the informant during each purchase produced a positive result for heroin.
¶28A search of the defendantâs name in board of probation records also showed an address of â957 Warren Ave Brockton, Massachusetts,â with no apartment number provided.
¶29Mercurio also sought, and was issued, a search warrant for the vehicle used by the defendant in driving to the drug sales. That warrant is not part of the present appeal.
¶30Specifically, the search resulted in the seizure of 58.5 grams of suspected heroin; twenty-nine grams of suspected âcrackâ cocaine; three grams of suspected cocaine; a nine millimeter Luger handgun with an obliterated serial number; ammunition; $2,365 in cash; digital scales and plastic baggies; and paperwork connecting the defendant to that location, among other items.
¶31The defendant also moved to suppress the firearm, ammunition, and money seized during the execution of the warrant because none of this evidence was requested by the police or supported by the affidavit. The defendant further argued that the police entry into her home was illegal because police did not knock and announce their presence. The motion judge resolved only the nexus issue and, because his review was confined to the information in the affidavit, held a nonevidentiary hearing; only the nexus issue was briefed and argued on appeal, both here and before the Appeals Court. We confine our review accordingly.
¶32The information in the affidavit was undoubtedly sufficient to establish that the defendant lived in the apartment searched. Police surveillance, utility records, police department records, probation department records, and the defendantâs own statements indicated that the third-floor apartment, the location searched, was her residence. It is therefore immaterial that police never saw the defendant enter or leave the door of apartment no. 3; it was enough that they observed her leaving from and returning to the apartment building. See Commonwealth v. Warren, 418 Mass. 86, 90 (1994); Commonwealth v. Alcantara, 53 Mass. App. Ct. 591, 593-594 (2002).
¶33The details of the affidavit provide a reasonable basis to infer that the defendant traveled directly from her home to the third controlled purchase. During the telephone call initiating the purchase, the defendant told the informant that she would meet him in five minutes, but did not leave her home until five to seven minutes later. The return trip from the controlled purchase took only two minutes, indicating that the defendant could quickly arrive at the prearranged location and thus wait until just minutes before the arranged meeting time to leave. See Commonwealth v. Vynorius, 369 Mass. 17, 19 n.4 (1975) (travel time between location searched and location of sale can support inference that drugs were stored at place searched).
¶34The defendant relies heavily on Commonwealth v. Smith, 57 Mass. App. Ct. 907 (2003) (Smith), where die Appeals Court held that the observation of *728three controlled purchases (before one the defendant was observed leaving his house, and after another the defendant was seen returning home) did not establish probable cause to search the defendantâs home. But Smithhas since been confined to its facts ââ according to the Appeals Court, Smithstands for the proposition that police observations of a defendant driving from home to a drug transaction on one occasion, without more, do not suffice to establish probable cause to search the home, see Commonwealth v. Luthy, 69 Mass. App. Ct. 102, 108-109 (2007), citing to our subsequent decision in Commonwealth v. OâDay, 440 Mass. 296, 304 (2003), a statement much like the rule in Commonwealth v. Escalera, 462 Mass. 636 (2012). In any event, there is considerably greater evidence of a nexus between the residence and the drug sales in this case than in the Smithcase.
¶35The evidence also provided probable cause to believe that the police would find records of the defendantâs drug distribution business, which the search warrant permitted the officers to seek. See Commonwealth v. Turner, 71 Mass. App. Ct. 665, 669 (2008); Commonwealth v. Luthy, supra at 107. The existence of probable cause to search for such records does not âalone support probable cause to search the home for drugs.â Commonwealth v. Escalera, supraat 644 n.7.
¶36That police did not see suspicious activity during their three surveillances of the defendantâs residence does not alter our conclusion as to probable cause. See Commonwealth v. Hardy, 63 Mass. App. Ct. 210, 213 (2005) (âThe fact that police never observed short-term visitors or other evidence of drug transactions at the defendantâs residence ... is not fatal to probable cause, because the defendantâs usual method of operation was to deliver drugs away from [her] apartmentâ [citations omitted]).
¶37The affidavit supporting the search warrant, to which we confine our review, did not specify whether the telephone used during the controlled purchases was a âlandlineâ or a cellular telephone.
¶38We are not persuaded by the defendantâs argument that the information in *729the affidavit was stale. See Commonwealth v. Cruz, 430 Mass. 838, 843 (2000). The entire investigation occurred over eight days, with the third controlled purchase taking place only two days prior to the issuance and execution of the warrant. Such information is sufficient to establish a timely nexus to the defendantâs apartment. See Commonwealth v. Spano, 414 Mass. 178, 184-185 (1993) (information timely where continuous drug operation was observed by police, up to within forty-eight hours of making of affidavit). Contrast Commonwealth v. Reddington, 395 Mass. 315, 322-323 (1985) (seven month old tip about once seeing drug transactions in defendantâs house stale).
¶39This test has been abandoned under the Fourth Amendment to the United States Constitution, in favor of a less exacting âtotality-of-the-circumstancesâ inquiry. Illinois v. Gates, 462 U.S. 213, 230-231 (1983). Under art. 14 of the Massachusetts Declaration of Rights, however, we continue to apply the Aguilar-Spinelli test to probable cause determinations in the assessment of an informantâs tip. See Commonwealth v. Upton, 394 Mass. 363, 374 (1985). âWe review the contested search in light of the more stringent standards of art. 14, with the understanding that, if these standards are met, so too are those of the Fourth Amendment.â Commonwealth v. Byfield, 413 Mass. 426, 429 n.5 (1992).