Following a jury trial in the Superior Court in Berkshire County, the defendant, David Reid, was found guilty of rape of a child without force, and assault and battery. In the Appeals Court the defendant claimed error in the following respects: the trial judge’s not charging the jury regarding indecent assault and battery as a lesser included offense of the rape оf a child without force; the exclusion of evidence that the victim herself may have caused the condition which suggested penetration; and the judge’s failure to conduct a complete voir dire on the issue of the victim’s competency. He also claimed ineffective assistance of counsel in that his trial counsеl failed to move for a required finding of not guilty on the basis of lack of evidence that the defendant penetrated the victim; failed to request an instruction regarding the lesser included offense of indecent assault and battery; failed to refer in his closing to the lack of evidence of penetration; and failed to file a mоtion in limine seeking to exclude certain of the defendant’s prior convictions. Finally, ineffective assistance of counsel is claimed in that trial counsel failed to comply with the Rape-Shield Law, G. L. c. 233, § 21B (1984 ed.), in attempting to *536 introduce evidence from a social worker, regarding her observations that the victim engaged in excessive touching of herself in the genital area.
The Appeals Court ordered a new trial in order that the trial judge be given an opportunity to exercise his discretion with regard to the defendant’s prior convictions.
Commonwealth
v.
Reid,
1.
Ineffective assistance of counsel.
Even where a defendant raises ineffective assistance of counsel for the first time on aрpeal, the court will review that issue in order to “prevent a miscarriage of justice.”
Commonwealth v. Mercado,
The defendant claimed, for the first time on appeal, that he was denied effective assistance of counsel under the State and Federal Constitutions because trial counsel failed to move in limine or at trial to exclude certain of his prior convictions or to request limiting instructions. In his motion for new trial and on appeal he claims that trial counsel should have diminished the adverse effect of the introduction of the convictions by eliciting them on direct examinаtion of the defendant. While we agree that it would have been better practice for trial counsel to have at least objected to the introduction of the defendant’s prior convictions, we do not believe that prejudice to the defendant resulted.
Ineffective assistance of counsel is governed in this Commоnwealth by the standard set forth in
Commonwealth
v.
Saferian,
a.
Admission of prior convictions.
There is no apparent reason for counsel’s failure at least to object to the introduction of the defendant’s numerous prior convictions. That failure constitutes behavior which fell measurably below that of an ordinary fallible lawyer. In
Commonwealth v. Maguire, 392
Mass. 466, 470 (1984), we held that a trial judge’s decision
*538
regarding admission of prior convictions under the statute
2
involves an exercise of discretion which is reviewable by an appellate court. The danger of unfair prejudice is weighed against the probative value of the evidence of prior convictions with regard to credibility.
Id.
See
Commonwealth
v.
Fano, ante
296 (1987). As early as 1977, we stated that “we would not deny the right of a judge to avoid any question of unfairness by excluding such evidence in a situation where the likely prejudice to the defendant is most intense,” where the prior conviction is of a similar crime to that charged and has little relation to untruthfulness.
Commonwealth
v.
Chase,
The trial in the present case was held in September, 1985. The law was well established at that time that a judge must exercise discretion with regard to impeachment of a criminal defendant with prior convictions, and that the decision is reviewable on appeal. Although we can only speculate as to what ruling the trial judge would have made, the ordinary fallible lawyer would usually be expected to at least object to the introduction of the defendant’s fourteen prior convictions. In the present case, however, we do not believe that counsel’s conduct resulted in prejudice to the defendant.
Although the court has stated that where the prior conviction is for a crime substantially similar or similar in nature to the crime for which the defendant is on trial, the danger of unfair prejudice is most likely to arise,
Commonwealth
v.
Elliot,
Some of the prior convictions were dissimilar to either charge, did not involve assaultive behavior, and had a direct bearing on the honesty of the defendant, i.e., possession of stolen property, receiving stolen property, and uttering a forged check. Thus, еven under the narrowest standard for admission of prior convictions, there is no apparent basis for excluding all the evidence. None of the prior crimes is notably similar to rape of a child without force. In the rape case, therefore, similarity of the prior conviction would not have been a sound basis for the judge to exercise his discretion in favor of excluding all of the evidence. Furthermore, even though some are similar to the assault and battery charge, we do not believe that under the circumstances of this case it would have been an abuse of discretion not to exclude them. Assault and battery of a police officer and assault and battery with a deadly weapon are not necessarily substantially similar to punching a child.
In
Commonwealth
v.
Elliot, supra
at 833-834, this court suggested that unfair prejudice might arise where a defendant charged with rape was impeached with a prior conviction for rape. The present case does not present the similarity of offenses that existed in
Elliot.
Neither are we presented with a case where a judge believed he had no discretion or admitted the prior convictions
because of
their similarity to the crimes charged. See
Commonwealth
v.
Ruiz, ante
214 (1987);
Commonwealth
v.
Guilfoyle,
b.
Required finding of not guilty.
There was no ineffective assistance of counsel based on any of the other grounds claimed by the defendant. While penetration is an element of the crime of rape,
Commonwealth
v.
Gallant,
c.
Lesser included offense.
Similarly, the judge did not err in not instructing the jury on what the defendant claims is a lesser included offense to rape of a child, without force, i.e., indecent assault and battery on a child under fourteen. General Laws c. 265, § 23 (1984 ed.), rape of a child without force, contains no element of lack of consent of the child.
Commonwealth
v.
Ellis,
d. Rape-Shield Law, G. L. c. 233, § 21B (1984 ed.). The defendant claims that trial counsel should have filed a motion under G. L. c. 233, § 21B, to introduce evidence of recent conduct of the victim (masturbation) as the cause of the enlargement of the child’s hymenal opening. In a lobby conference, prior to the defendant’s introduction of evidenсe, the testimony of two social workers was discussed. Defense counsel believed *542 that one had information regarding prior sexual abuse of the child. The judge stated that he would allow evidence regarding any substantiated claim of sexual abuse of the victim by someone other than the defendant. At trial, a social worker who had investigated the case, testified that in July, 1984, she had concluded that the victim had been sexually abused by someone other than the defendant. Defense counsel believed that another social worker could provide testimony that she observed the victim engaged in excessive touching of her own genital area. The judge suggestеd that this social worker be produced and the prosecutor offered to contact her. The witness was never called to testify by the defense. We fail to see any error in the judge’s handling of the testimony (or proposed testimony) of the two social workers, nor has any ineffective assistance of counsel been demonstrated.
2.
Competency of the child victim.
The trial judge’s ruling on the competency of the child victim was not erroneous. A judge’s decision regarding competency will not be set aside unless clearly erroneous.
Commonwealth
v.
Tatisos,
The child victim was four years old at the time the events alleged in the indictment occurred and five years old at the time of trial. She was questioned by the trial judge and testified that she knew she would be asked things by both lawyers, she had to tell the truth аnd it would be wrong if she did not tell the truth. Defense counsel complains that adequate voir dire was not conducted, yet, in addition to the judge’s questioning *543 of the child, defense counsel was allowed to question her. The trial judge ruled, over objection by the defense counsel, that the child was competent. We find no error.
Judgments of the Superior Court affirmed.
Notes
In his motion for new triаl the defendant claimed ineffective assistance of counsel in that trial counsel failed to introduce evidence that babysitters of the victim other than the defendant had the opportunity to commit the acts of which the defendant was accused, and that the victim herself may have inserted objects into herself, thereby сausing her symptoms; failed to introduce the defendant’s criminal record on direct examination of the defendant; and failed to introduce evidence that a social worker had investigated possible sexual abuse of the victim prior to the defendant’s involvement with her. The motion was denied, without hearing, by the trial judge. While the defеndant filed a claim of appeal from that denial, it was not briefed or argued in the Appeals Court or in this court. Thus, the denial of the motion for new trial is not before this court.
General Laws c. 233, § 21 (1984 ed.), governs the admission of prior convictions to impeach a witness.
The convictions were: possession of stolen property, receiving stolen property, uttering a forged check, breaking and entering with intent to commit a felony, breaking and entering in the nighttime and stealing property valued at under $100.00, wanton destruction of property, operating under the influence, operating after suspension, disorderly conduct, assault and battery of a police officer (three convictions; he denied one), assault and battery with a dangerous weapon, and threatening to kill.
Evidence was introduced that the victim told others of the rape. “Fresh complaint” evidence may be admitted to corroborate the victim’s testimony.
Commonwealth
v.
Bailey,
