¶1The defendant was arrested for operating a motor vehicle while under the influence of intoxicating liquor. He was taken to the Hopkinton police station at approximately 12:30 a.m. At approximately 12:45 a.m., the defendant was permitted to telephone his attorney. A police officer asked the attorney over the telephone if the defendant was going to take a breathalyzer test. The attorney answered that he was not sure but that the police should “start warming it up.” The attorney arrived at the police station at approximately 1:00 a.m. Upon his arrival, the attorney asked to speak privately with the defendant to determine whether the defend*505ant would assent to taking a breathalyzer test. The request was denied. The defendant did not take the test. He was then taken to a cell. The attorney again requested a private conference with his client, and again the request was denied. The defendant was released on bail at approximately 2:20 a.m. The reason given by the police for denying the first request for a private conference was that they were required to keep the defendant in constant view for twenty minutes before administering the breathalyzer test (see 501 Code Mass. Regs. § 2.55 [1987]), and, short of officers in the field, they did not want to detain an officer to start the twenty-minute observation period over again. No justification was offered for the second denial, except that it was consistent with “policy.”
¶2On these undisputed facts, a District Court judge dismissed the complaint against the defendant. The judge determined that the denial of a private conference was a material factor in the defendant’s failure to take the breathalyzer test, that the defendant had a right to confer privately with his attorney at the station, and that his right to counsel, therefore, was denied. The Commonwealth appealed. We agree with the Commonwealth that the case should not have been dismissed.
¶3The defendant had no statutory or constitutional right to have the police administer a breathalyzer test to him. Commonwealth v. Alano, 388 Mass. 871 (1983). His only substantive rights with respect to a blood alcohol content test were those set forth in G. L. c. 263, § 5A, and the defendant was adequately protected when the police informed him of his right to secure an independent physical examination and granted him access to the telephone. Id. at 879. Compare Commonwealth v. Andrade, 389 Mass. 874, 877-882 (1983). Commonwealth v. Brazelton, 404 Mass. 783 (1989), decided after the motion to dismiss was allowed in this case, held that an arrested person has no Federal or State constitutional right to consult with an attorney before deciding whether to submit to a breathalyzer test. We think no meaningful distinction can be made between the facts in that case and the *506present one. Further, the defendant’s constitutional right to counsel had not attached at the time his attorney sought to confer with him in the cell. See Commonwealth v. Jones, 403 Mass. 279, 286 (1988). The judge’s decision, therefore, cannot stand on its stated ground.
¶4The defendant points out, correctly, that our courts have recognized, as a matter of fundamental fairness, that police officers may not purposefully interfere with a defendant’s access to a specific attorney who wants to confer with the defendant and who the police know represents the defendant. See Commonwealth v. McKenna, 355 Mass. 313, 324-325 (1969); Commonwealth v. Mahnke, 368 Mass. 662, 692 (1975), cert. denied, 425 U.S. 959 (1976); Commonwealth v. Sherman, 389 Mass. 287, 291 (1983); Commonwealth v. DiMuro, ante 223, 226 & n.2 (1990); ABA Standards, The Defense Function § 4-3.1(d) (2d ed. 1979). See also Commonwealth v. Manning, 373 Mass. 438 (1977); Commonwealth v. Lewin, 405 Mass. 566, 586 n.13 (1989). Appropriate remedies have been fashioned in cases involving such interference. See, for example, Commonwealth v. McKenna, 355 Mass. at 325 (suppression of statements made during custodial interrogation where the defendant was not apprised of his attorney’s efforts to speak with him); Commonwealth v. Mahnke, 368 Mass. at 692. Absent egregious prosecutorial misconduct or serious prejudice to a defendant, however, the severe remedy of dismissal has not been invoked. See Commonwealth v. Cinelli, 389 Mass. 197, 210, cert. denied, 464 U.S. 860 (1983); Commonwealth v. Sherman, 389 Mass. at 295. Cf. Commonwealth v. Manning, 373 Mass. at 443 (dismissal required where Federal agents wilfully interfered with the defendant’s constitutional right to counsel and some prejudice resulted).
¶5In this instance, the denial of a private conference with counsel had no adverse consequences for the defendant
¶6We conclude that, in the absence of prejudice or any claim of improper motive on the part of the Hopkinton police, dismissal of the complaint against the defendant was not called for.
¶7Order dismissing complaint reversed.
¶8Although the defendant’s driver’s license was suspended by the Registry of Motor Vehicles, it was reinstated, notwithstanding G. L. c. 90, § 24(1)(f), a month after his arrest.
¶9As a sanction for the improper police conduct, however, it would be within the trial judge’s discretion to allow the defendant, should he choose to do so, to introduce evidence at trial as to the circumstances attending his failure to take the test to explain the absence of potentially exculpatory evidence. Compare Commonwealth v. Cameron, 25 Mass. App. Ct. 538, 549 (1988); Commonwealth v. Holman, 27 Mass. App. Ct. 830, 832 (1989). The trial judge may also exercise his discretion to prevent the Commonwealth from offering testimony about observations of the defendant’s demeanor while in custody at the police station.