COMMONWEALTH vs. MACARTHUR DENSON.

ROSE, J. The defendant was indicted for aggravated rape and assault and battery by means of a dangerous weapon. The defendant's first trial ended in a declaration of mistrial over

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the defendant's objection. On retrial the defendant was convicted of both offenses. The defendant assigns as error: (1) the denial of his motion to dismiss the indictments on the ground that the double jeopardy clause barred his retrial; (2) the manner of the Commonwealth's introduction of the defendant's prior conviction; and (3) certain of the jury instructions on the use of prior inconsistent statements. We affirm the convictions.

We summarize the facts. In the first trial, as in the second, the defendant offered consent as his defense to the aggravated rape charge and denied the assault and battery with a dangerous weapon charge. The first trial progressed up to the point of the cross-examination of the defendant. After the defendant had answered "No" to a question whether he had used a rope around the complainant's neck, a woman in the courtroom gallery made the following outburst:

"No he didn't. [The complainant] is nothing but a slut and a whore. I've known her twenty-four years. She's a prostitute and everything else. That's all she is."

From the witness stand the defendant then said, "Go out with my mother." [Note 1] The woman was later identified as the defendant's mother.

At this point there was a bench conference. The Commonwealth moved for a mistrial; the defendant objected. The trial judge took the motion under advisement, gave a lengthy curative instruction to the jury and recessed the trial from that time (Wednesday afternoon) until Friday morning. In the interim, a local newspaper printed an article on the courtroom outburst, reporting that it might result in a mistrial.

On Friday morning the trial judge heard both counsel on the motion for mistrial. The Commonwealth argued that the complainant's credibility had been damaged beyond repair by any instruction and that since credibility was the

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critical issue in the case a mistrial was necessary. The defendant disputed the extent of damage to the victim's credibility and suggested a voir dire. Following a brief recess, the trial judge granted the motion for mistrial stating that he "[did] not do this lightly." The judge noted that he had "reflected and considered, among other things, conducting a voir dire of the jurors" but had concluded that a voir dire would exacerbate the impact of the outburst, if the local newspaper article had not done so already. From his remarks it appears that the trial judge accorded great weight to the defendant's right to have his trial concluded in a single proceeding, before a particular tribunal. On balance, the trial judge concluded that there was "material prejudice of the jurors' ability to deliberate impartially" creating "manifest necessity" for a mistrial.

At the outset of the second trial, the defendant moved to dismiss the indictments on double jeopardy grounds, arguing that the mistrial had been declared without manifest necessity. The motion was denied.

From evidence adduced at the second trial, the jury could have found the following: The defendant was a friend of the complainant's sons. On the evening of April 1, 1980, the defendant stayed overnight at the complainant's home with two of her sons. The complainant stayed overnight at a friend's home. On the morning of April 2, the defendant left the complainant's home with one of her sons, returned alone, and then left again with the second son. The second son locked the door upon leaving. When the complainant returned home later that morning, the defendant was there alone. As the complainant was moving about the house doing various household tasks, the defendant grabbed her, brought her to a couch and tied a rope around her neck, choking her. The defendant then raped her.

1. The defendant contends that there was no "manifest necessity" for the mistrial declared over his objection at his first trial. See Arizona v. Washington, 434 U.S. 497, 505 (1978). There is no mechanical formula for determining whether manifest necessity for a mistrial is present in a particular

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case. Commonwealth v. Reinstein, 381 Mass. 555, 560-561 (1980). The trial judge must exercise sound discretion, balancing the defendant's "valued right to have his trial completed by a particular tribunal," Arizona v. Washington, supra at 509, against the "public interest in just judgments," id. at 510. See Jones v. Commonwealth, 379 Mass. 607, 619-620 (1980). In exercising this discretion, the trial judge must: first, afford counsel a full opportunity to be heard; and second, carefully consider alternatives to the drastic measure of a mistrial. Arizona v. Washington, supra at 515-516; Jones v. Commonwealth, supra at 618. See Reinstein v. Superior Court, 661 F.2d 255, 257 (1st Cir. 1981). An exercise of sound discretion by the trial judge, particularly if it involves evaluation of the significance of juror bias, is entitled to appellate deference. Arizona v. Washington, supra at 509-510; United States v. Pierce, 593 F.2d 415, 419 (1st Cir. 1979). See Barton v. Commonwealth, 385 Mass. 517, 519 (1982).

In the circumstances of the defendant's first trial, declaration of a mistrial was an exercise of sound discretion. The trial judge afforded both counsel two opportunities to be heard on the motion for mistrial. Contrast Jones v. Commonwealth, supra at 618; United States v. Pierce, supra at 419. As alternatives to a mistrial, the trial judge considered a curative instruction and the defendant's suggestion of a juror voir dire. Contrast Jones v. Commonwealth, supra at 618-619; Barton v. Commonwealth, supra at 519. The decision to reject the alternatives and declare a mistrial was hardly precipitous, coming after two recesses, one of substantial length. Cf. Commonwealth v. Reinstein, supra at 562. Contrast United States v. Pierce, supra at 416-417.

We see no reason here to depart from the general rule of appellate deference to a trial judge's exercise of sound discretion on a motion for mistrial. The emotional outburst by the defendant's mother disparaging the complainant's character and reputation for chastity had the potential to compromise the jury's ability to determine the facts (particularly

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as to the issue of consent) solely on the basis of the evidence; to prejudice the jury against the complainant; and to divert its attention from the object of the trial. [Note 2] Cf. Commonwealth v. Joyce, 382 Mass. 222 (1981). The trial judge was in the best position to assess the likelihood and magnitude of these potential dangers. Arizona v. United States, supra at 513-514. He determined that there was "material prejudice to the jurors' ability to deliberate impartially" and that the considered alternatives were inadequate to cure that prejudice. [Note 3] Contrast Commonwealth v. Fullerton, 12 Mass. App. Ct. 985 (1981) (curative instruction adequate where the victim's aunt shouted "liar" during defendant's testimony); Ladd v. South Carolina, 415 F.2d 870, 872-873 (4th Cir.), cert. denied, 397 U.S. 1049 (1969) (curative instruction adequate where third person remarked to one venireman, later juror, on a rape case that he knew the complainant and that "she had another boy in jail on the same count"). "There can be no doubt that actual bias among jurors renders mistrial manifestly necessary to perserve the ends of public justice." Elder v. Commonwealth, 385 Mass. 128, 133 (1982). There was no abuse

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of discretion. There was manifest necessity for a mistrial.

2. The defendant contends that the manner in which the Commonwealth introduced a prior breaking and entering conviction against him was tantamount to a substantive use of the conviction and denied him a fair trial. The Commonwealth introduced the conviction over the defendant's objection immediately after the defendant's testimony that the complainant's home had been locked when he left it on the morning of April 2, 1980, and that, contrary to the complainant's testimony, he was not inside the complainant's home when she arrived later that morning. The defendant argues that this juxtaposition was intended to suggest to the jury that the defendant had not been invited in by the complainant as he claimed, but that he had broken in; from this the jury could infer that the complainant had not consented to sexual intercourse, as the defendant claimed, but that she had been raped. The admissibility of the conviction is conceded. The defendant relies on Commonwealth v. Roberts, 378 Mass. 116 (1979).

In some circumstances, the juxtaposition of a conviction with a question concerning a related matter may amount to "a trap . . . designed not to impeach the defendant's credibility but to establish substantively the defendant's propensity for violence" or for a particular crime. Commonwealth v. Roberts, supra at 127; Commonwealth v. Felton, ante 63, 66 (1983). See also Commonwealth v. DiMarzo, 364 Mass. 669, 681 (1974) (Hennessey, J., concurring). Such use of a conviction violates both the letter and the spirit of G. L. c. 233, Section 21. See Commonwealth v. Felton, supra at 66. See also Commonwealth v. Roberts, supra at 127. Although the better practice might be for the trial judge to exercise his discretion to prevent the overly suggestive introduction of an otherwise properly admissible prior conviction, limiting instructions will ordinarily obviate any harm to the defendant occasioned by such an introduction. See Commonwealth v. Chase, 372 Mass. 736, 750 (1977).

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There was little danger that the jury would conclude that the defendant had a propensity for violence or a propensity to commit the types of acts involved in the charges against him. The conviction introduced against the defendant was for an offense entirely different in character from the offenses for which the defendant was being tried. Cf. Commonwealth v. Whitehead, 379 Mass. 640, 661 (1980). Contrast Commonwealth v. Felton, supra. The defendant requested and received a limiting instruction immediately after the introduction of the conviction. The judge again instructed the jury on the limited purpose of the prior conviction evidence in his final charge. Any prejudice to the defendant occasioned by the Commonwealth's manner of introducing the prior conviction was adequately countered by the judge's instructions. There was no error.

3. The defendant contends that the jury instructions on the use of prior inconsistent statements were restrictive to the point of denying him his right to impeach the complaining witness. [Note 4] In particular, the defendant points to the

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judge's instruction to the jurors that if they found a witness' prior statement to be inconsistent with his testimony, they could use the statement in judging the witness' credibility if they thought that his trial testimony was "an attempt to mislead" them.

The impeachment value of a witness' prior inconsistent statement lies in the jury's ability to infer from it that the witness was in error or lying during his trial testimony and to discount that testimony accordingly. Cf. McCormick, Evidence 97 n.42, 98 (2d ed. 1972). An instruction would diminish this impeachment value if it restricted the jury's ability to discount a witness' testimony on the basis of a prior statement to instances in which it believed that any inconsistency between the witness' trial testimony and the statement reflected falsification rather than error or confusion. "Viewing the charge in its entirety, as we must," Commonwealth v. Connors, 13 Mass. App. Ct. 1005, 1008 (1982), we conclude that the judge's instructions to the jury did not have such an effect. There was no error.

Judgments affirmed.