The defendant appeals from his conviction under G. L. c. 140, § 129C, possession of a rifle without a firearm indentification card. 1 Because of a prejudicially erroneous jury instruction concerning the defendant’s defense to the indictment, we reverse the judgment.
On September 28, 1978, Boston Detective Peter O’Malley responded to a report of a shooting incident at the Munch N’ Brunch, a restaurant located in the Chinatown section of Boston. When he arrived at the scene, other police officers were already in the process of arresting five young men, one of whom was the defendant. As these young men were being escorted to and placed in a police wagon, an elderly man approached Detective O’Malley. This man pointed to the group of suspects and told O’Malley that he had seen them place a rifle in a brown box in a van parked about a
*520
block or two away. He described the rifle as long with a black barrel, a wooden stock and an ammunition clip attached under the firing mechanism. He also stated that the van was white with a red stripe and bore New York license plates. Refusing to go with Detective O’Malley and two other officers directly to the van, the man led the three officers a part of the way and then pointed them in the direction of the van. The officers proceeded in the indicated direction and saw a Ford Econoline van which matched the description they had been given by the elderly man. Peering through the windshield, the officers observed a long brown box under a bunk bed in the left section of the van. (See
Commonwealth
v.
Haefeli,
General Laws c. 140, § 129C, first par., as amended by St. 1973, c. 892, § 3, provides: “No person, other than . . . one who has been issued a license to carry a pistol or revolver or an exempt person as hereinafter described, shall own or possess any firearm, rifle, shotgun or ammunition unless he has been issued a firearm identification card . . . .” While the defendant produced no evidence to show that he had the requisite identification card to possess the rifle legally, there was evidence which put in issue the question whether the defendant was an “exempt person,” as described in § 129C, fourth par.
(h),
as amended through St. 1973, c. 892, § 4. See
Commonwealth
v.
Jones,
The evidence as to whether the rifle was unloaded and enclosed in a case came from Detective O’Malley’s responses to the Commonwealth’s questions concerning his actions after he obtained the search warrant for the van:
A: “I believe I went upstairs first and obtained some keys that were in the property of the defendant, and I went downstairs and I went into the truck, the Ford Econoline van. I went in and I seized, I took the box.” cc
Q: “You seized the box. What did you do next?”
A: “I opened the box.”
Q: “What did you find?”
A: “I found a 30 caliber M-l semi-automatic rifle.”
The box which Detective O’Malley opened was approximately thirty inches long, eight and one-half inches wide, and five inches deep. When asked whether the rifle he found in the box was loaded, Detective O’Malley replied, “[I]t had a large banana clip on the bottom which was removed, and there were bullets, shells, bullets inside the clip. ” He stated that the rifle was loaded, that the clip “was attached and part of the rifle that you have seen.” When asked how the clip was attached, Detective O’Malley gave a visual demonstration.
Against this backdrop of the recited evidence, we set out in full that portion of the judge’s jury charge pertaining to whether the defendant was an exempt person under § 192C, fourth par. (h):
“[S]o you have a determination of fact to make here, and that is whether or not Stanton Lee was a nonresident traveling in or through the Commonwealth, and whether or not that rifle was unloaded and enclosed in a case.
*522 “So, two questions arise in that respect. Was it loaded or unloaded? Was it in a case or not in a case? So, you would have to decide what that was, that cardboard box. Is it a case or not? You know what a case is. A case is a container. Do you think that the cardboard box is a case or do you think that the statute calls for a container that is in fact a case for a gun? It’s for you to determine. Those are questions of fact that you must determine before you are able to reach a determination of guilt or innocence in this case.
“What is the meaning of that brown box, that cardboard box? Is it a case? It’s for you to decide” (emphasis supplied). 2
We hold that as matter of law § 129C, fourth par.
(h),
does not require that a rifle be enclosed in a case that is specifically manufactured as a gun case to the exclusion of all other intended uses for such a container and that, consequently, the jury instruction was incorrect. It is well established as a principle of statutory construction that “[pjenal statutes must be construed strictly ‘and not extended by equity, or by the probable or supposed intention of the legislature as derived from doubtful words; but that in order to charge a party with a penalty, he must be brought within its operation, as manifested by express words or necessary implication.’ ... A penal statute is not to be extended merely by implication. ... It is an anciently established rule in the interpretation of statutes that such a sense is to be made upon the whole statute that no clause, sentence or word shall prove superfluous, void or insignificant if by any other construction it may be made useful and pertinent.”
Libby
v.
New York, N.H. & H. R.R.,
*523
There is nothing ambiguous or unusual about the word “case.”
3
“The language of this statute is plain, and therefore it is to be interpreted in accordance with the usual and natural meaning of the words.
Condon
v.
Haitsma,
Whether a case is sufficient to establish the existence of the exemption under § 129C, fourth par.
(h),
in any particular instance is a question of fact to be answered by a fact finder under appropriate instructions in light of all the circumstances revealed by the evidence. See
Commonwealth
v.
Bartholomew,
We cannot regard the error as harmless. The evidence presented to the jury put before them the conjunctive con
*525
tingencies whether the rifle was unloaded
6
and whether it was enclosed in a case. While the jury’s verdict might have been based upon a finding that the rifle was loaded, or that it was not enclosed in a case, or both, it might also have been based upon a finding that the rifle was unloaded but that the long brown box in which it was enclosed was not “in fact a case for a gun,” which they determined to be required by the statute. Thus, we are unable to state that the verdict would not have been different had appropriate instructions been given. See
Commonwealth
v.
Courtney,
Other Issues.
Because it is possible that the defendant will be retried, we dispose of the defendant’s remaining allegations of error.
1. Motion to Suppress Physical Evidence.
The defendant argues that the warrant authorizing the search of his van issued without probable cause. His argument is two-pronged: (1) because Detective O’Malley based the supporting affidavit upon information received from an unknown and unidentified informant from whom the police had never previously received information, the judge issuing the warrant had no facts upon which he could properly conclude that the informant was trustworthy; and, (2) the information contained in the tip and verified by the officers did not establish probable cause.
7
See
Aguilar
v.
Texas,
378
*526
U.S. 108 (1964), and
Spinelli
v.
United States,
The defendant challenges the applicability of the
Martin
and
Melvin
holdings to the present affidavit on the basis of distinctions which we regard as strained. He notes that, unlike the tip in
Melvin,
the tip here was accusatory rather than innocuous, and that the information was volunteered rather than prompted by police inquiries as had occurred in
Martin,
2. Motion to Suppress Statements.
While on bail pending trial on the present offense, the defendant returned to New York, where he was later arrested by Federal authorities for violations of Federal gun control statutes unrelated to the present indictment. He made statements to the Federal agents which he sought to suppress as evidence in the present trial.
The judge found that the defendant had been advised of his Miranda rights, that he understood them, and that he voluntarily signed a card waiving them and signed a transcript of his statements. These findings are supported by the evidence, and we will not disturb them.
Commonwealth
v.
Harmond,
The defendant’s primary attack on the denial of this motion is based upon the fact that, when the Federal agent delivered the Miranda warnings to the defendant, he did not tell him that any of his statements to Federal authorities could be used against him in the pending Massachusetts proceedings.
8
Based upon this omission, the defendant struc
*529
tures an involuntary waiver argument. See
Commonwealth
v.
Garcia,
The defendant claims that he did not expect to receive legal advice from the Federal agents but only enough information upon which he could make a responsible choice. This argument misses the point of the warnings that the defendant had a right to counsel and a right to refuse to talk with the police until he spoke with his counsel. The fact that he chose not to avail himself of those rights cannot be attributed to any improper or offensive police activity which requires application of the exclusionary rule.
The defendant also alleges error in respect to the denial of his motion because, he claims, the judge erroneously excluded his testimony on the issue of his “understanding” of the Miranda warnings. We have reviewed the questions put to
*530
the defendant by his counsel on this topic, and our review leads us to conclude that, once again, by “understanding” the defendant means appreciation of the legal ramifications of his waiver rather than a comprehension of the rights guaranteed to him. We find no error in the exclusion of his answers.
Commonwealth
v.
Garcia,
3. Relevancy of Certain Evidence.
a. The defendant complains that Detective O’Malley’s testimony concerning his observations when he arrived at the restaurant and the events leading up to his obtaining the search warrant were irrelevant and prejudicial to the defendant and should have been excluded. He argues that the evidence served no purpose but to associate the incidents at the restaurant (see note 1,
supra)
with the rifle in issue. The judge instructed the jury from the outset that while they might hear references to other incidents involving the defendant, that information had the limited purpose of providing them with background information.
9
Whether the
*531
relevancy of this evidence was outweighed by its potential for prejudice was a matter within the judge’s sound discretion.
Green
v.
Richmond,
b. The defendant also argues that Federal Agent Choo’s recitation of his interrogation of the defendant in New York was prejudicial in that it created the impression that the defendant was a “bad character.” This argument is without force; in addition, we note that the defendant based his objections at trial upon the ground that the prosecutor was leading the witness. Simply put, there was no error in allowing the agent’s testimony.
Moreover, the defendant’s argument takes on no force in relation to Agent Choo’s testimony concerning the defendant’s admission that, some sixteen days prior to the events in question, he had purchased ammunition and the rifle in question in New York using a false name and fictitious identification because “he didn’t want the gun coming back to him.” To be sure, this evidence was harmful to the defendant. It cannot, however, be said that it was of no probative value, as it went directly to the issue of the defendant’s knowing possession of a rifle without an identification card. There was no error in the admission in evidence of this testi
*532
mony.
Green
v.
Richmond,
c. The defendant argues that the introduction of evidence pertaining to the abundance of ammunition and ammunition clips was calculated to “horrify the jury” and create the clear implication that “the defendant commits crimes and shoots people.” We are of the opinion that the evidence could rightly be regarded as relevant on the issues of knowing possession of the rifle and whether the rifle was loaded. While the argument can be made that this evidence was tenuously connected to these points and cumulative of other more direct evidence,
10
we cannot say that the judge acted outside the limits of his discretion in allowing the evidence to be presented to the jury.
Green
v.
Richmond,
4. Burden of Proof.
The defendant’s final contention*
11
is that the judge’s instructions to the jury relating to the issue of possession of a firearms identification card and proof of the § 129C, fourth par.
(h),
exemption failed to make clear the Commonwealth’s burden of proving beyond a reasonable doubt that the defense of § 129C, fourth par.
(h),
was not available to the defendant. The judge’s charge in this respect, viewed in its entirety, comported with the law as stated in
Commonwealth
v.
Jones,
To summarize, we conclude as matter of law that § 129C, fourth par. (h), does not require that an unloaded rifle be enclosed in a case which is a specially designed case for a gun in order to be available to the defendant as an exemption under § 129C and that, therefore, the jury instruction was *533 prejudicially erroneous. In all other respects, the defendant’s trial was free from reversible error.
Judgment reversed.
Verdict set aside.
Notes
The defendant was also indicted for assault with a dangerous weapon, G. L. c. 265, § 15A, and assault with intent to murder, G.L. c. 265, § 15. The judge allowed the defendant’s motion to sever those charges from the trial of the present indictment.
Defense counsel specifically excepted to the underscored portion of the instruction.
The usual and natural meanings of case, container and receptacle as found in Webster’s Third New International Dictionary (1971) are as follows. A case is defined as “a box or receptacle to contain or hold something (as for carrying, shipping, or safekeeping)” (346); a container is “a receptacle (as a box or jar) or a formed or flexible covering for the packing or shipment of articles, goods or commodities” (491); and a receptacle is “one that receives and contains something” (1894). See
State
v.
Butler,
Concealment of a firearm is not the gist of the offensive conduct specified in either c. 140, § 129C, or c. 269, § 10, which, while prescribing the conditions under which a person may legally possess and carry a firearm, are silent on the notion of concealment. Thus, if a person carried a firearm on his person but concealed it under his clothing, or if he carried a rifle in a gun case or a case placed in the trunk of his car but concealed the case under
*524
other articles in the trunk, he would not be in violation of either statute so long as he fell within an exemption under § 129C on the conditions set out in § 10(a). Compare
State
v.
Butler,
See also
Commonwealth
v.
Squire,
Defense counsel’s closing argument focused the jury’s attention on this factual issue by calling into question Detective O’Malley’s testimony and credibility.
The affidavit, sworn to by Detective O’Malley, recited the following facts verbatim: “I have information based upon [:] While at the scene of a reported shooting at the ‘Munch and Brunch’ restaurant at 262 Harrison Ave., City I was approached by an older Chinese male who while talking *526 to me pointed to a group of young Chinese malefs] being put into a police wagon, and stated to me that this group were at a white truck with a red stripe and he seen them with he describes as a long gun with a black barrel and a brown wooden stock with a clip coming from the bottom, that he saw them put this gun into a brown box. He then walked to the intersection of Harrison Ave. and Marginal Road, there he again told myself, Det. Sgt. E. Simmons and Det. J. MacKinnon that he seen the group with a gun describe above in the white van with the red stripe and he stated that it came from New York. He repeatedly refuse to give any of the officers his name, and refuse to approach the vehicle, only pointed in the direction towards Tremont St. The above officers then walked along Marginal Road and when at the intersection of Wash. St., observed a Ford Econoline van white in color with a red stripe on the side with New York registration plate 441 JOG parked at the intersection of Wash. St. and Marginal Rd. When looking into this vehicle from the front window the officers observed a long brown box under what appeared to be a bunk bed on the left side of the truck looking in it from the front. This brown box fit the description given by the older Chinese male in width and apparently in length. Of the 5 males who were taken into the wagon 1 was arrested with a firearm, another Stanton Lee had in his possession a Reg. from N.Y. § 411 JOG that was attached to above van.”
Specifically, when defense counsel asked the interrogating agent whether he told the defendant his statements could be used at his Massachu *529 setts trial, the agent answered, “I advised him that anything he said can be used against him in court. ... I didn’t specify what particular jurisdiction, what particular court.”
“There may be references to other incidents, for example, the Munch N’ Brunch . . . but that’s only incidental, incidental, and if it is mentioned at all it is mentioned only to make understandable what actually happened in this in order to devote your time and attention to the charge *531 that’s brought within the four comers of this indictment, and that’s it.” This point was again made in the judge’s final instructions: “That’s the only charge against him, and the fact that there has been very scant reference to the Munch N’ Brunch or other people and so forth, disregard that. Disregard it completely because it has nothing to do with this case.”
See United States
v.
Kopel,
Our disposition of this case makes it unnecessary for us to consider the defendant’s contention that certain remarks of the prosecutor deprived him of a fair trial, thereby requiring a new trial. See e.g.,
Commonwealth
v.
Shelley,
