1. The trial judge denied Barber’s motion to dismiss the venire on the ground that young adults were inadequately represented. The only evidence (admitted by stipulation) was a report, made in another case by a special master, which revealed that persons from age eighteen to thirty-four appeared on juries in the county substantially less frequently than would be expected in view of the number within that age group. There was no proof of intentional discrimination. The judge correctly ruled that the jury venire was not “illegally constituted.” See Commonwealth v. Bastarache,
3. The judge did not abuse his discretion by denying Barber’s motion for individual examination of prospective jurors on proposed questions. These included questions concerning whether the jurors would be unduly prejudiced against a black defendant in prison charged with drug offenses, where the witnesses would be white correction officers. Barber did not prove any risk that a jury might make decisions based upon extraneous considerations sufficient to require (pursuant to G. L. c. 234, § 28) asking the proposed questions. See Commonwealth v. Campbell,
4. On the basis of Commonwealth v. Palmarin,
After the date of the alleged offense considered in the Palmarin case, G. L. c. 278, § 23, was amended by St. 1978, c. 478, § 305 (effective, see § 343, on January 1, 1979, well before July 5, 1980, the date of the alleged offense in this case). Section 23 (with additions made by the 1978 amendment shown in italics and omissions made by that amendment shown in brackets) reads: “At the trial of a criminal case in the superior court, upon indictment [or appeal], or in a jury-of-six session in a district court, the fact that the defendant did not testify at any [the] preliminary hearing [or trial] in the first [lower] court, or that at such hearing [or trial] he waived examination or did not offer any evidence in his own defens[c]e, shall not be used as evidence against him, nor be referred to or commented upon by the prosecuting officer.” The words “or trial” were twice omitted from § 23 by the 1978 statute. We do not consider, however, whether there is merit in the Commonwealth’s contention that § 23 no longer forbids the prosecution to ask questions about or refer to the failure of a pivotal defense witness to testify at an earlier trial. Cases under § 23 dealing with offenses since the 1978 amendments, have not discussed the omission of “or trial,” because those cases have dealt with testimony at preliminary (probable cause) hearings still covered by the amended § 23. See Commonwealth v. Cefalo,
5. Barber (after the Commonwealth had rested its direct case and one defense witness had testified) presented a motion in limine that the prosecutor be ordered to refrain from asking Barber on cross-examination questions about his alleged refusal on July 5, 1980, to give (at the request of a correction officer) a urine sample. No Miranda warnings had been given prior to the request. The trial judge, after hearing argument, declined to rule on the motion until he heard the defense’s direct evidence. No offer of proof was made of what Barber’s testimony would be if he took the stand. See the suggestion in Commonwealth v. Diaz,
6. The judge charged that if Janusz and another inmate threw a hypodermic needle among Barber’s belongings “and he didn’t know they threw it there,” he must be found not guilty. He also charged that if Barber secreted a substance or item “in some place where he [Barber] had the ability to get it even though he didn’t physically have it on his person that’s sufficient to amount to possession.” These and other questioned statements in the instructions cannot be considered in isolation. The instructions as a whole adequately stated the elements of the offenses charged and made clear that, in order to convict, the jury must be satisfied that Barber had the forbidden item in his possession and that he knew it. See Commonwealth v. Pinnick,
The judge also reasonably stated that there was “sufficient evidence in this case” to require an instruction on “what is a joint enterprise.” This statement involved no violation of “his province” or “charge upon the facts.” See Holmes, J., in Commonwealth v. Mulrey,
7. The judge did not disregard appropriate considerations (see Commonwealth v. O’Rourke,
Judgments affirmed.
