After a jury trial in October, 1984, the defendant was convicted of assault and battery by means of a dangerous weapon, a knife. He was sentenced to the Massachusetts Correctional Institution at Walpole (now Cedar Junction) for a term of eight to ten years. 1 He appeals both his conviction and the denial of his motion for postconviction relief. In the view we take of the case, we need consider only the appeal from the denial of the defendant’s motion for a new trial.
The record reveals the following facts. At midnight on Friday, December 10, 1982, Stephen W. Travis and three of his friends were among a throng of 800 then patronizing a Boston nightclub. While drinking near a dance floor, Travis noticed that a fistfight had broken out among three men nearby. Moments later, Travis felt someone bump him from behind. Turning, Travis saw the defendant and pushed him away. The defendant threw a punch at Travis, and Travis responded in kind, knocking the defendant to his knees. From that position, the defendant lunged upward with his hand toward Travis’s stomach. Travis saw blood staining his shirt. The defendant disappeared quickly into the crowd, as Travis left the club. Boston police Officers Richard Clancy and Charles Hubert arrived at the nightclub within five minutes of the incident. One of Travis’s friends led the officers to the defendant, who was still inside. The defendant sought to elude apprehension. After a chase within the club, he was apprehended, and, after a violent struggle, Officer Clancy subdued him and placed him under arrest. 2 He was searched immediately. Officer Clancy found a knife with a four-inch blade in the defendant’s trousers, at the small of his back. Officer Hubert took control of the knife.
*19
Prior to trial, the prosecution and the defense submitted a pretrial conference report as required by Mass. R. Crim. P. 11 (a) (2) (A),
After his conviction, the defendant engaged new counsel who, in preparation for this appeal, telephoned the Boston police crime laboratory and learned that a written report existed showing that a test for the presence of blood had been conducted on the knife shortly after it was seized. The report showed no trace of blood on the defendant’s knife. The defendant then moved for postconviction relief under Mass. R. Crim. P. 30 (a),
On appeal, we consider only the defendant’s claim that a new trial is required because the laboratory report showing no trace of blood on the defendant’s knife was exculpatory evi *20 dence which the Commonwealth suppressed in violation of his constitutional rights. We are persuaded that this contention is dispositive of the case, and we order a new trial.
In the pretrial conference report filed pursuant to Mass. R. Crim. P. 11 (a) (2) (A), the Commonwealth agreed to furnish the defendant with the mandatory discovery guaranteed by Mass. R. Crim. P. 14 (a) (1) (C),
Depending on the specificity of the defendant’s request for exculpatory evidence, different standards of judicial review apply. “Where the accused has made a request for evidence sufficiently specific to place the prosecution on notice as to what the defense desires, the evidence must be disclosed even if it provides only ‘a substantial basis for claiming materiality exists.’”
Commonwealth
v.
Wilson,
The defendant asserts that his request was specific, because the pretrial agreement asked specifically for “police reports” and “scientific reports.” The judge held, however, relying on
Commonwealth
v.
Jackson,
Applying this test, we note that, while there was ample evidence of a fight in which the defendant struck the victim, the evidence offered to prove that it was the defendant who stabbed the victim was weaker. The Commonwealth called four eyewitnesses — the victim and three of his friends. Two of the friends testified that, while they saw the defendant lunge at the victim, they did not see the defendant stab him. They did not see a knife in the defendant’s hand at any time. The third friend was not asked whether he. saw a knife. The victim himself testified equivocally; on direct examination, he said that he “saw a glimpse of a knife” as the defendant withdrew his hand, but he also testified, on cross-examination, that he saw no knife in the lunging hand, and that everything happened so quickly he “really didn’t know what happened.” In this context, where it was the prosecution’s theory that the defendant used the knife found on him to stab the victim, we think the defendant has more than a substantial basis for claiming that a laboratory report showing no traces of blood on his knife was material and prejudicial. 6
*23
It is undisputed that the Commonwealth never disclosed the laboratory report, and that the very existence of the report was not discovered until nearly five months after the defendant’s conviction. “ ‘When the prosecutor receives a specific and relevant request, the failure to make any response is seldom, if ever, excusable.’
Agurs, supra
at 106. In such cases,
Agurs
commands that ‘the reviewing judge must set aside the verdict and judgment unless his “conviction is sure that the error did not influence the jury, or had but very slight effect.” ’
Id.
at 112.”
Commonwealth
v.
Ellison,
The Commonwealth, however, urges us to agree with the trial judge, who found a lack of prejudice because, in his view, the laboratory report was suppressed, not solely due to prosecutorial negligence, but also because of a “reasonable trial tactic” employed by the defense. We have reviewed the transcript of the trial and the motion hearing, and we find that this analysis is at odds not only with logic and the facts but also with the judge’s own statements at trial and the motion hearing. Such a finding clearly is not warranted by the evidence.* ** 7 To *24 agree with the judge, we must suppose that a trial lawyer (who was described by the judge as “an attorney with extensive experience”) would prefer to argue to a jury that reasonable doubt can be inferred from the absence of a test report when he could have relied instead on a police report showing the absence of blood on his client’s knife.
“The grant of a mistrial followed by a new trial is the relief typically granted where a defendant is prejudiced by a prosecutor’s failure to disclose properly exculpatory, material evidence.
See Brady
v.
Maryland,
Order denying motion for new trial reversed.
Notes
All but sixty days of this sentence were suspended. In 1980, however, the defendant had been placed on probation after pleading guilty to a number of other charges. On conviction of the instant offense, his probation was revoked, and he was committed to serve concurrent terms totalling twenty years at the Massachusetts Correctional Institution in Concord, with the term of sixty days to be served from and after the term of twenty years.
Another man was arrested at the same time, but he escaped.
Apparently, Officer Hubert had kept possession of the knife. Officer Clancy testified that he first realized that the knife was lost only a day or two before trial. The prosecutor told the judge that he had not known with certainty of the unavailability of the knife until the very day of Officer Clancy’s testimony. The judge found no evidence of bad faith or deliberate suppression of the knife by the Commonwealth.
The Commonwealth does not dispute that, as matter of law, the laboratory report was within its custody and control, even though no copy was ever in the prosecutor’s files, and he himself was not aware that it existed. See
Commonwealth
v.
St. Germain,
The Commonwealth urges us to follow the approach recently adopted for use in the Federal courts. See
United States
v.
Bagley,
We also note that, while we are not bound by the approach now controlling in the Federal courts, see note 5, supra, we view the laboratory report as so material that its suppression is sufficient to undermine our confidence *23 in the outcome of the defendant’s trial. Therefore, even if we were to adopt the approach set forth in Bagley, supra, we would conclude that the defendant is entitled to relief.
The judge found that defense counsel admitted being informed by Officer Hubert’s testimony at the probable cause hearing that, while no laboratory report had yet been received, the results of a test for blood on the knife had come back negative. At trial, however, the judge and both counsel proceeded on the assumption that no laboratory report existed. Nevertheless, the Commonwealth argues that the failure of the prosecutor to deliver the laboratory report to the defendant cannot be characterized as “suppression” of it. We find no merit in this argument. Where defense counsel has received the prosecutor’s express promise to provide “police reports” or “scientific reports,” that promise coupled with the prosecutor’s failure to furnish counsel with any laboratory evidence warrants a reasonable conclusion by counsel that, no matter what he was told previously by Officer Hubert (now unavailable), no report existed. The Commonwealth’s reliance on
Lugo
v.
Munoz,
Nor can we agree that, when “[fjaced with the unexpected revelation at trial that the knife was lost, [defense counsel] apparently decided that such circumstance coupled with his knowledge that the test results were negative . . . might afford him a strong argument to the jury on the issue of reasonable doubt in the face of a very strong case against the defendant.” Where counsel’s supposed “knowledge that the test results were negative” was not in evidence, such knowledge could not have afforded him any argument to lay before the jury to create a reasonable doubt of guilt.
The defendant argues that the judge erred when denying his motion to dismiss. The defendant sought dismissal on grounds that (1) the Commonwealth failed to produce exculpatory evidence, the knife; and (2) the prosecutor gave timely notice neither of the loss of the knife nor of tests that were done. Apparently, the defendant argues that he is entitled to dismissal because these prosecutorial failures amount to irremediable harm. We have held that such failures result in such harm only where they “prevent[ ] the possibility of a fair trial” in the second instance. Lam Hue To, supra at 314. The defendant has not stated reasons why a second trial could not be conducted fairly, nor do we perceive any. Dismissal of the indictment is not warranted, but a new trial clearly is.
