Thе defendant, Rufino Montanez, was convicted of distribution of cocaine (second offense) and trafficking in cocaine in violation of G. L. c. 94C, §§ 32A (b), 32E (b) (2) (1988 ed.). 1 The judge sentenced him to from nine to ten years on the distribution charge and from fourteen to fifteen years on the trafficking charge, the sentences to be served consecutively at the Massachusetts Correctional Institution at Cedar Junction. The defendant appealed, arguing that the judge erred in: (1) denying his motion for a new trial on the ground of ineffective assistance of counsel; (2) denying his motion to suppress certain evidence; (3) denying his motion to sever the two charges for separate trials; and (4) denying his motion for a required finding of not guilty on the trafficking charge. We transferred the case to this court on our own motion, and we now affirm.
*292 The jury could have found the following facts from the evidence at trial. On February 6, 1988, the defendant sold three and one-half grams of cocaine to an undercover police officer at the defendant’s Woburn apartment. For the following four months, police maintained continuous surveillance of the defendant as part of an ongoing drug investigation in the area. During this period the police noted that, when the defendant was at his apartment in the evening, a lighted lamp would be set in a certain second-floor window (though this window was not in the defendant’s apartment), the defendant’s black Lincoln Continental automobile would be parked outside, and foot and automobile traffic to and from the rear entrance of the apartment building would increase.
On June 3, 1988, the police obtained a search warrant authorizing a search of the defendant’s apartment. The affidavit in support of the application for the warrant described the undercover purchase of February 6, 1988, and the observations gathered in the subsequent surveillance of the defendant. In addition, the affidavit included information provided by two confidential informants. The first informant stated that he had seen the defendant sell cocaine to others on four separate occasions, and that he had personally purchased cocaine from the defendant in May of 1988. All of these sales took place in the defendant’s apartment. The second informant, according to the affidavit, also said that he had seen the defendant sell cocaine from his apartment, and added that “the way to know if Montanez is [doing] business is if the Black Lincoln [Continental] is out side the building” and “the window curtain is pulled back and a lamp is in the window.”
The warrant was executed on the evening of June 3, 1988. As police entered the hallway leading to the defendant’s second-floor apartment, the defendant poked his head out of the apartment door a number of times. When the defendant then came out into the hallway, the police ordered him to lie prpne on the staircase landing outside the apartment. The defendant was arrested, and a search of his person revealed $1,406 in cash. Inside the apartment, the police found a flare *293 gun and flares, a telephone tap deteсtor, and several empty, plastic-coated paper folds of a type used in the drug trade to package small amounts of cocaine for sale. In addition, an officer moved a tile in the dropped ceiling directly outside and above the door to the defendant’s apartment. Sliding the hallway ceiling tile aside, the officer discovered three plastic bags. The first plastic bag contained a powder that proved to be nearly-pure cocaine, 2 the second contained a nonnarcotic white powder commonly used to dilute cocaine, and the third contained five or six paper folds, each of which in turn contained approximately one-half gram of cocaine.
On April 5, 1989, the evening before trial was to begin, the defendant, trailed by a Woburn police officer, went to an airline terminal at Logan International Airport in Boston. There the officer approached the defendant, who was standing with a brown suitcase at the ticket counter. The clerk at the counter gave the officer the ticket that he was processing at the time, a one-way ticket to Puerto Rico issued in the name Rafael Lindt. The flight was scheduled to leave that night. The officеr observed various articles of men’s clothing in the brown suitcase when a woman accompanying the defendant opened it to remove certain items. The officer arrested the defendant, placed the suitcase in the police cruiser, and left with the defendant and the woman. The suitcase was admitted in evidence over the defendant’s objection.
1. Ineffective assistance of counsel. The defendant claims that the judge improperly denied his motion for a new trial based on ineffective assistance of counsel. He points to three purported shortcomings in his attorney’s performance: (1) counsel’s failure to investigate a simultaneous search of another resident of the defendant’s apartment building; (2) counsel’s failure to seek suppression of the brown suitcase seized at the airport; and (3) counsel’s failure to present mitigating factors at sentencing and to request concurrent sentences. We reject the first two claims on procedural and *294 substantive grounds, and the third on procedural grounds only.
The defendant’s claims of ineffective assistance are barred as a procedural matter because the defendant failed to raise these arguments in a timely fashion.
3
A procedural chronology is in order. Several months after his trial, the defendant moved for a new trial, pursuant to Mass. R. Crim. P. 30 (b),
Upon the denial of the motion for a new trial on April 2, the defendant was permitted thirty days to file either an appeal, Mass. R. A. P. 4 (b), as amended,
Nevertheless, we address the merits of the defendant’s claims. We discuss the first claim because we reject it for *295 substantive as well as procedural reasons. In addition, we note that the defendant raises the second and third claims for the first time on this appeal. Because these claims have not been adjudicated, the trial judge may consider them on a second motion fоr a new trial or resentencing under Mass. R. Crim. P. 30 (b). Therefore, we express our view of the second and third claims, although they are not properly before this court, in order to guide the trial judge should the defendant elect to raise them again in a rule 30 (b) motion for postconviction relief. 6
The standards governing claims of ineffective assistance of counsel are well established. The defendant must demonstrate that his attorney’s performance fell “measurably below that which might be expected from an ordinary fallible lawyer” and that counsel’s conduct “has likely deprived the defendant of an otherwise available, substantial ground of de-fence.”
Commonwealth
v.
Saferian,
*296 The defendant argues, first, that counsel’s failure to investigate the arrest of one of the defendant’s neighbors constituted ineffective assistance. Simultaneously, with the search of the defendant’s sеcond-floor apartment, the police, pursuant to a warrant, conducted a search of a third-floor apartment in the same building. The search revealed cocaine, and the neighbor was arrested. The defendant claims that he informed his lawyer of these facts, but that his lawyer failed to investigate the lead further. Noting that the neighbor also had access to the ceiling in the common hallway on the second floor, the defendant suggests that counsel’s omission constitutes ineffective assistance in that it deprived him of the defense that the cocaine hidden in the ceiling belonged not to the defendant, but to the neighbor. We disagree.
If we assume for purposes of analysis that counsel’s decision not to investigate the neighbor’s arrest was “manifestly unreasonable” (though we do not so decide), the defendant clearly was not prejudiced thereby. The defendant suggests that, had counsel obtained the affidavit and return attached to the warrant authorizing the search of the neighbor’s apartment, he would have learned that the neighbor was also known to sell cocaine and that cocaine packaged in paper folds was found in the neighbor’s apartment. The persuasive value of this evidеnce, however, is negligible. The discovery of paper folds in the neighbor’s apartment carries little weight given the fact that similar paper folds were discovered in the defendant’s apartment, considerably closer to where the cocaine was hidden. In addition, the revelation that the neighbor was known as a cocaine dealer, according to a confidential informant cited in the affidavit, was critically flawed: in form, because the information was inadmissible hearsay and, in substance, because the same informant alleged that the neighbor “got a lot of his cocaine from [the defendant].” Even if counsel had found a way to overcome the admissibility problems, he undoubtedly would not have offered that evidence at the risk of revealing the defendant’s role as the neighbor’s supplier.
*297 Further, the argument that counsel’s omission was prejudicial to the defense suffers from a more fundamental defect — counsel did in fact introduce evidence similar to that contained in the warrant application. On cross-examination of two police officers, counsel brought out the fact that the police conducted drug investigations of another resident of the defendant’s building. Thus, the record does not suрport the defendant’s claim that counsel’s alleged failure to investigate the neighbor’s arrest deprived him of “an otherwise available, substantial ground of defence.” Saferian, supra 8
The defendant’s second claim of ineffective assistance stems from counsel’s failure to move for suppression of the brown suitcase found in the defendant’s possession at the airport on the eve of trial. Again, even if counsel’s failure to
*298
make such a motion was “manifestly unreasonable” (which we do not determine), the defendant suffered no prejudice as a result of counsel’s omission.
9
Evidence of flight is properly admitted to рrove consciousness of guilt.
Commonwealth
v.
Toney,
Finally, the defendant argues that counsel’s performance was deficient in that he failed to present certain mitigating factors at the defendant’s sentencing or to argue for concurrent sentencеs. At the sentencing, counsel noted only that the defendant “has two children [whom] he has been supporting” and “has worked many years in Woburn where his roots are.” Counsel failed to mention the defendant’s involvement in various community groups and did not elaborate on relevant points in the defendant’s work or family history. See
Commonwealth
v.
Lykus,
We conclude, therefore, that the defendant’s claim of ineffective assistance at the sentencing, alone among the grounds *299 he advances, has merit. Because the defendant’s appeal is time-barred, however, we do not decide this issue. We offer our view of the evidence only to guide the trial judge should the dеfendant elect to bring a second motion for a new trial or for resentencing.
2. Denial of the motion to suppress evidence. The defendant claims error in the denial of his motion to suppress evidence seized during the search of his apartment and the adjoining hallway. He contends that the affidavit in support of the search warrant, which relied in part on information supplied by confidential informants, failed to set forth sufficient facts to support a finding of probable cause. He further suggests that the search of the hallway exceeded the scope of the search warrant. Neither argument succeeds.
a.
The search warrant affidavit.
In
Commonwealth
v.
Upton,
The affidavit relied on two confidential informants. According to the affidavit, both informants saw the defendant sell cocaine from his apartment on several occasions. In fact, one informant had himself bought cocaine from the defend
*300
ant, and the other had watched the defendant sell cocaine within days of the submission of the affidavit. Because the informants’ knowledge was based on personal observations, the “basis of knowledge” prong of the
Aguilar-Spinelli
test was satisfied.
Commonwealth
v.
Valdez,
The affidavit also establishеd the informants’ credibility in a number of ways. The first informant, according to the affidavit, had provided information that led to the conviction of two named men for distribution of cocaine. This assertion was sufficient to support a magistrate’s conclusion that the first informant was reliable.
Commonwealth
v.
Amral,
The affidavit relаted the February 6, 1988, undercover purchase of cocaine from the defendant, and numerous details gathered by police officers during the surveillance of the defendant. In addition, the informant stated that, when the defendant was open for business, his distinctive automobile would be parked outside the apartment building, a lighted lamp would be set in a designated window, and a lookout would be posted. The police observed the same activity during their surveillance of the defendant. Thus police corroboration bolsters the second informant’s credibility. See Upton, supra at 376. We hold, therefore, that the informants’ tips satisfied both prongs of the Aguilar-Spinelli standard, and that the affidavit contained ample evidence to support the magistrate’s finding of probable cause.
b.
The search of the hallway ceiling.
The defendant contends that, even if the search warrant was valid, the officers’ search of the area above the dropped ceiling in the common hallway outside his apartment exceeded the scope of the war
*301
rant and was unlawful under the State and Federal Constitutions. The defendant’s claim under the Fourth Amendment to the United States Constitution fails at the outset because he lacks standing to raise the issue.
United States
v.
Salvucci,
When a defendant has standing under our rule for State constitutional purposes, we then determine whether a search in the constitutional sense has taken place.
Commonwealth
v.
Frazier, supra
at 244 n.3. This determination turns on whether the police conduct has intruded on a constitutionally protected reasonable expectation of privacy. See
Sullivan
v.
District Court of Hampshire,
Conceding for present purposes that the defendant may have had a subjective expectation of privacy in the space above the hallway ceiling, we conclude that that expectation was not reasonable. In evaluating the reasonableness of an individual’s expectation of privacy, we look to a number of factors, including the character of the location involved.
Commonwealth
v.
Pina,
*303 We conclude, therefore, that the defendant had no constitutionally protected reasonable expectation of privacy in the area above the hallway ceiling not leased or controlled by him nor subject to any agreement or understanding with the landlord as to its use. The police conduct, therеfore, did not constitute a search in the constitutional sense. Consequently, it is unnecessary to reach the defendant’s arguments that the “search” exceeded the scope of the warrant.
3. Denial of the motion to sever. The defendant next contends that the judge erred in denying his motion to sever the trials of the distribution and trafficking indictments. He argues that the distribution charge (stemming from the February 6, 1988, undercover purchase) and the trafficking charge (stemming from the subsequent surveillance and the evidence seized in the June 3, 1988, search) were unrelated, and that he was unfairly prejudiced by the joinder. We disagree.
Joinder is governed by Mass. R. Crim. P. 9,
The determination whether joinder is appropriate is committed to the sound discretion of the trial judge. See
Commonwealth
v.
Todd,
*304
The two offenses clearly are connected in a single course of conduct. There was ample evidence to support the Commonwealth’s theory that the defendant continuously sold cocaine from his apartment in the four months betweеn the undercover purchase and the search. In addition, evidence of the February 6 undercover purchase would have been admissible in a trial on the trafficking charge to establish the defendant’s intent to distribute, an essential element of the charge of trafficking in cocaine. G. L. c. 94C, § 32E
(b).
See
Commonwealth
v.
Hoppin,
Further, the defendant has not met his burden of demonstrating prejudice requiring severance. See
Gallison, supra.
This burden is not satisfied by a showing merely that the defendant’s chances for acquittal would have been better had the two indictments been tried separately.
Id.
at 672. Rather, the defendant must establish that “the prejudice resulting from a joint trial is so compelling that it prevents [the] defendant from obtaining a fair trial.”
Commonwealth
v.
Moran,
There was no abuse of discretion in the judge’s denial of the motion to sever.
4. Denial of the motion for required finding of not guilty. At the close of the Commonwealth’s evidence, the defendant moved for a required finding of not guilty on the trafficking *305 indictment. 10 The defendant argues that the judge improperly denied that motion. The judge’s ruling was not in error.
The standard of review on the denial of a motion for a required finding of not guilty is “whether, after viewing the evidence in the light most favorable to the prosecution,
any
rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt” (emphasis in original).
Commonwealth
v.
Latimore,
In order to convict the defendant on the charge of trafficking in cocaine, the Commonwealth was required to prove that the defendant knowingly or intentionally possessed twenty-eight or more (but less than 100) grams of cocaine with the intent to distribute the drug. See G. L. c. 94C, § 32E
(b)
(2). The evidence of these elements was strong, albeit circumstantial. The police discovered more than twenty-nine grams of cocaine as well as powder used to “cut,” or dilute, cocaine immediately outside the defendant’s apartment door, hidden above the dropped ceiling. In the same location, police found smaller amounts of cocaine packaged in paper folds. A police officer testified that this method of packaging was characteristic of the drug trade. Similar paper folds were found in the defendant’s apartment (though these did not contain cocaine), as well as $1,406 in cash on the defendant’s person. There was also expert testimony that the police officers’ observations during the surveillance of the defendant, as well as the amount and purity of the cocaine discovered above the hallway ceiling, suggested that the de
*306
fendant was engaged in the distribution of cocaine. Finally, there was the evidence of the defendant’s attempt to flee on the eve of trial, from which the jury could infer consciousness of guilt.
Commonwealth
v.
Toney,
Judgments affirmed.
Notes
The second offense element of the distribution charge was based on the fact that the defendant had pleaded guilty to the charge of possession of cocaine in 1987. See G. L. c. 94C, § 32A (b). The defendant elected to proceed without the jury on this issue, which was tried before the trial judge after the jury returned guilty verdicts on the two indictments before them.
A police officer testified that the bag contained 29.51 grams of 86-91 % pure cocaine.
The Commonwealth does not contest the timeliness оf the defendant’s remaining claims.
Under
Cronk, supra,
quoting
United States
v.
Cook,
This case does not present the situation in which a motion for reconsideration
timely filed
may stop the appeal period from running until the motion is denied. See
Commonwealth
v.
Powers,
We are precluded from resolving these claims more definitively under G. L. c. 211, § 3 (1988 ed.), while this remedy remains open to the defendant.
The defendant bases his claims of ineffective assistance of counsel on both the State and Federal Constitutions. We have stated that, if the
Saferian
test is met, then the requirements of the Federal Constitution are necessarily satisfied as well. See
Commonwealth
v.
Haggerty,
The defendant also argues that the prosecutor’s failure to produce the warrant application in response to a discovery request violated his right to a fair trial under the Federal and State Constitutions. Ordinarily the prosecution is required to disclose exculpatory, material evidence to the defense.
Commonwealth
v. Gregory,
We express no opinion as to the legality of the police officer’s “seizure” of the suitcase or the likelihood of success on a motion to suppress it.
The judge accepted the motion on both the distribution and trafficking charges. On appeal, however, the defendant offers no argument that the evidence on the distribution charge was insufficient to submit to the jury. Therefore that argument is waived. Mass. R. A. P. 16 (a) (4), as amended,
