dissenting. In this certified appeal, the state claims that the Appellate Court improperly determined that the trial court improperly had refused the defendant’s requested jury instruction* 1 regarding the doctrine of nonexclusive possession. It further claims that the *17trial court’s failure to provide the jury with the requested instruction, if improper, constituted harmless error. The majority agrees with the state that the trial court’s decision not to give the requested instruction was proper. I disagree, and therefore respectfully dissent.
I
Because the defendant was not in physical possession of the firearm at the time of his arrest, the state acknowledges, as it must, that, in order to establish possession of the firearm for a conviction under General Statutes (Rev. to 1999) § 53a-217 by constructive possession, it was required to prove beyond a reasonable doubt that the defendant had exercised intentional dominion and control over the firearm and that he had knowledge of its character. See General Statutes § 53a-3 (2);* 2 State v. Hill, 201 Conn. 505, 516, 523 A.2d 1252 (1986) (concluding with respect to constructive possession that “control must be exercised intentionally and with knowledge of the character of the controlled object”).3 Although the majority recognizes that a criminal defendant is *18entitled to a jury instruction on a defense if there is any evidence presented at trial impheating that defense, in my opinion, it fails to adhere to that principle. Although the majority recognizes that it must view the evidence in the light most favorable to the defendant, it examines that evidence in a light that would support an acquittal, rather than simply in a manner that would gauge whether the defendant was entitled to a jury instruction on the doctrine of nonexclusive possession.
“As a general rule, a defendant is entitled to have instructions on a defense for which there is evidence produced at trial to justify the instruction, no matter how weak or incredible the claim.” State v. Varszegi, 236 Conn. 266, 282, 673 A.2d 90 (1996); see State v. Havican, 213 Conn. 593, 597, 569 A.2d 1089 (1990) (“[i]f the defendant asserts a recognized legal defense and the evidence indicates the availability of that defense, such a charge is obligatory and the defendant is entitled, as a matter of law, to a theory of defense instruction” [internal quotation marks omitted]). Specifically, in deciding whether the trial court improperly failed to provide the jury instruction on nonexclusive possession of the premises, as requested by the defendant, “we must adopt the version of the facts most favorable to the defendant which the evidence would reasonably support.” (Internal quotation marks omitted.) State v. Henning, 220 Conn. 417, 428, 599 A.2d 1065 (1991); see also State v. Lewis, 245 Conn. 779, 810, 717 A.2d 1140 (1998); State v. Edwards, 234 Conn. 381, 388, 661 A.2d 1037 (1995).
The state claims that “the evidence presented by the defendant did not permit a finding that [he] and Kirk Scott [the lessee of the vehicle] jointly had or previously had access to the car [and the firearm, but, rather] . . . the defendant’s theory of the case was that, although he briefly possessed the key to [the] car, he could not have placed the gun on the front seat because Scott *19had sole access to the vehicle.” On the basis of this view of the evidence, the state contends, and the majority agrees, that the Appellate Court’s conclusion in this case conflicts with the Appellate Court’s decision in State v. Nesmith, 24 Conn. App. 158, 586 A.2d 628, aff'd, 220 Conn. 628, 600 A.2d 780 (1991) (affirming conviction for possession of narcotics where trial court refused to charge jury on nonexclusive possession), and this court’s affirmance thereof. I disagree.
At trial in Nesmith,4 the defendant argued that another detainee in the apartment in which the defendant had been arrested had dropped the narcotics at issue therein and he requested a jury charge on the doctrine of nonexclusive possession, which the trial court refused to provide. Id. In affirming the judgment of conviction, the Appellate Court reasoned that “[t]he common factor in cases that have applied [the doctrine of nonexclusive possession] is the fact that the narcotic substances were accessible to others and were found in areas that were also occupied by others.” Id., 161. The Appellate Court concluded that, because the defendant had been charged with possession of the narcotics found in the back room of the apartment, which he alone had occupied, the evidence did not implicate sufficiently the doctrine of nonexclusive possession to warrant a jury instruction thereon. Id., 161-62.
This court affirmed the Appellate Court, concluding that the evidence presented by the defendant “established possession of the narcotics without requiring that the jury draw an inference based solely on the defendant’s presence on the premises.” State v. Nesmith, 220 Conn. 628, 634, 600 A.2d 780 (1991). “[T]he conflicting stories [presented by] the defendant and the state’s witnesses both identified a specific person in possession of the drugs: the defendant, [whom the *20police officer] observed discarding an object later retrieved and identified as narcotics, or another detainee, who, according to the defendant, [had discarded] several glassine envelopes on the floor next to the defendant.” Id., 636. In Nesmith, “there was no risk that the jury would infer the defendant’s possession of the drugs from the mere fact that he was in nonexclusive possession of the premises because the evidence established that either the defendant or another detainee identified by the defendant [had] discarded the drugs.” Id., 636 n.ll. Thus, this court concluded that the defendant had not been entitled to a jury instruction on nonexclusive possession. Id., 634.
In the present case, the defendant presented evidence at trial that he had received the key to the car from Scott, but that he had not yet entered the vehicle at the time of his arrest. Tammy Dinatale, a representative from National Car Rental (National), testified that National owned the vehicle, and that during the time that the vehicle had been leased to Scott, he had notified National that the vehicle had been stolen. Dinatale testified further that Scott had called back one and one-half hours later to say that the car had not been stolen, but that he simply had loaned it to a friend. Thus, the evidence presented to the jury established that, not only Scott, but potentially others, had access to the vehicle wherein the firearm was found. During the closing argument, defense counsel argued to the jury that “it could have been somebody else’s gun [someone other than] Kirk Scott, maybe a friend of his. . . . Who’s to say how many people were in and out of [the] car?”
In Nesmith, an instruction on nonexclusive possession was not warranted because the evidence presented to the jury established that it was either the defendant who had possessed the narcotics or another identified detainee in the immediate vicinity. There was no danger that the jury would have inferred possession of the *21contraband based solely on the fact that the defendant, along with others, had occupied the vacant apartment wherein the officers had discovered the contraband. State v. Nesmith, supra, 220 Conn. 635. In this case, the evidence showed either that: (1) the defendant had exclusive possession of the car immediately before his arrest, which would have permitted the jury to infer that the defendant constructively possessed the firearm therein; see, e.g., United States v. Finley, 245 F.3d 199, 203 (2d Cir. 2001) (“[d]ominion, control, and knowledge may be inferred [from] a defendant’s exclusive possession of the premises” [internal quotation marks omitted]); or (2) the defendant, through possession of the key to the vehicle rented by Scott, who at one point had reported it stolen, had nonexclusive possession of the vehicle, which would have precluded an inference of possession of the firearm in the absence of other evidence linking the defendant to the weapon to support such an inference. See State v. Nesmith, supra, 220 Conn. 633; State v. Delossantos, 211 Conn. 258, 277, 559 A.2d 164, cert. denied, 493 U.S. 866, 110 S. Ct. 188, 107 L. Ed. 2d 142 (1989).
It bears emphasizing that the issue in this case is not whether there was sufficient evidence to support a conclusion that the state proved beyond a reasonable doubt the required elements necessary for a conviction. As the majority noted in its opinion, the “evidence supports a conclusion that the defendant exhibited the requisite control and knowledge of the weapon to establish possession.”5 Rather, the issue is whether there was any evidence presented at trial, “no matter how weak or incredible,” that would have justified the *22requested jury instruction. State v. Varszegi, supra, 236 Conn. 282. In my opinion, because the majority loses sight of the fact that the evidence must be viewed in the light most favorable to the defendant that would support a requested jury instruction, it concludes that the defendant’s possession of the key to the vehicle is irrelevant, as it was “entirely consistent with his theory of defense . . . .” See footnote 9 of the majority opinion.
Additionally, I disagree with the majority’s analysis concerning the issue of the defendant’s access to the vehicle. The majority asserts that “[t]he nonexclusive possession doctrine is typically implicated where the defendant admits that he had access to the premises” and it maintains that “[u]nder the defendant’s theory [of the case] ... he never had access to the premises.” In this regard, the majority equates the defendant’s ability to access the vehicle through possession of the key with actually having accessed the vehicle prior to his arrest. Although I agree that the defendant argued that he had not yet accessed the vehicle, the question whether he actually had done so, to me, is not dispositive of whether he is entitled to a jury charge on nonexclusive possession. This is particularly true where, as here, the state concedes that it prosecuted the defendant on a theory of constructive possession of the firearm and the trial court charged the jury accordingly.
In this case, possession of the key to the vehicle linked the defendant to the firearm contained therein. See State v. Graham, 186 Conn. 437, 445, 441 A.2d 857 (1982); cf. State v. Chisolm, 165 Conn. 83, 85, 328 A.2d 677 (1973) (insufficient evidence for conviction of possession of narcotics where “the only evidence of the defendant’s culpability was that he had a key which unlocked a padlock to a bin in the cellar of a multiple dwelling which he owned but in which he did not live and the additional fact that narcotics were found in the *23bin”). The defendant’s ability to access and exercise control over the firearm through possession of the key to the unoccupied vehicle was but one factor comprising constructive possession. See State v. Hill, supra, 201 Conn. 516. “The essence of exercising control is not the manifestation of an act of control but instead it is the act of being in a position of control coupled with the requisite mental intent.” (Emphasis added.) Id. (refusing to construe phrase “to exercise dominion or control” as referring only to situation where individual has exercised control). Indeed, as the majority aptly recognizes, a jury instruction on nonexclusive possession focuses the jury’s attention on the other aspects of constructive possession—knowledge and intent to exercise control. Therefore, because the defendant, by possessing the key to the vehicle, had the ability to access and control the firearm, I would conclude that he was entitled to the requested instruction on nonexclusive possession.
The state also contends that in order for the doctrine to apply, there must be evidence that the defendant and others not only had access to the location where the firearm was found, but that they jointly occupied that location. In this case, however, at the time that the police discovered the firearm in the vehicle and arrested the defendant some distance from the scene, no one occupied the vehicle. As noted previously, the state concedes that it prosecuted the defendant based solely on his constructive possession of the firearm because, although the state alleged that the officer had witnessed the defendant driving the vehicle, the officer never actually saw the defendant with the firearm. In essence, the state’s theory at trial was that the defendant had been in exclusive possession of the vehicle immediately preceding his arrest. The state contends that, because no one else had access to the vehicle between the time that the officer allegedly had witnessed the defendant *24driving, and the officer’s discovery of the firearm, the defendant constructively possessed the firearm. The defendant, however, claimed that he merely had possessed the key to the car and that others had access to the vehicle. Given these conflicting versions of the events, and particularly because no one occupied the vehicle at the time that the officer discovered the firearm and apprehended the defendant, I would conclude that it was for the jury to determine whether the defendant had been in exclusive or nonexclusive possession of the vehicle. See State v.Delossantos, supra, 211 Conn. 276-77 (characterizing trial court’s instruction on nonexclusive possession as “correct” where defendant was sole occupant of vehicle owned by another individual and narcotics found hidden in hatchback of car; inference of possession of narcotics permissible if jury determined that defendant had exclusive possession of vehicle).
Because the defendant possessed the key to the unoccupied vehicle, which was owned by a corporation and leased to yet another individual, and he was apprehended some distance from the firearm, the jury should have been instructed to determine whether the defendant was in exclusive or nonexclusive possession of the vehicle.6 In the absence of an instruction requiring it to consider the character of the defendant’s possession of the vehicle, the jury potentially was permitted to draw improper inferences concerning the defendant’s possession of the firearm. In this case, if the jury con-*25eluded that, contrary to the state’s theory, the defendant had not possessed the vehicle exclusively just prior to his arrest, the requested instruction would have ensured that any conviction under § 53a-217 was predicated upon more than “the defendant’s nonexclusive possession of the premises where the [firearm was] found”; State v. Nesmith, supra, 220 Conn. 636 n.11; and would have required the jury to consider “other incriminating statements or circumstances tending to buttress [the] inference” of possession of the firearm. (Internal quotation marks omitted.) Id., 633. Accordingly, I would conclude that the Appellate Court properly determined that the defendant was entitled to an instruction on nonexclusive possession.
II
Although the majority never reaches the second certified issue in this case; see footnote 8 of the majority opinion; I would conclude that omitting the requested instruction on nonexclusive possession alleviated the state’s burden of proof on the element of possession and that the trial court’s failure to so instruct the jury cannot withstand harmless error analysis.
“An improper instruction on a defense, like an improper instruction on an element of an offense, is of constitutional dimension.” (Internal quotation marks omitted.) State v. Lemoine, 256 Conn. 193, 198-99, 770 A.2d 491 (2001); see State v. Taylor, 239 Conn. 481, 512, 687 A.2d 489 (1996), cert. denied, 521 U.S. 1121, 117 S. Ct. 2515, 138 L. Ed. 2d 1017 (1997) (noting that jury instruction that dilutes state’s burden of proof is unconstitutional); State v. Wolff, 237 Conn. 633, 669, 678 A.2d 1369 (1996) (due process requires for conviction proof beyond reasonable doubt of every fact necessary for crime charged). “The United States Supreme Court has recognized that most constitutional errors can be harmless. . . . Neder v. United States, 527 U.S. 1, 8, 119 S. *26Ct. 1827, 144 L. Ed. 2d 35 (1999) . . . .” (Citation omitted; internal quotation marks omitted.) State v. Anderson, 255 Conn. 425, 444, 773 A.2d 287 (2001). “If an impropriety is of constitutional proportions, the state bears the burden of proving that the error was harmless beyond a reasonable doubt.” State v. Cavell, 235 Conn. 711, 720, 670 A.2d 261 (1996).
“An alleged defect in a jury charge which raises a constitutional question is reversible error if it is reasonably possible that, considering the charge as a whole, the jury was misled. ” (Internal quotation marks omitted.) State v. Spillane, 255 Conn. 746, 757, 770 A.2d 898 (2001); see also State v. Cerilli, 222 Conn. 556, 584 n.16, 610 A.2d 1130 (1992) (“perceiv[ing] no functional difference” between harmless error standard requiring court to determine, on whole record, whether constitutional error harmless beyond reasonable doubt, and standard of whether there was no reasonable possibility that jury was misled). “In performing harmless error analysis, we keep in mind that [i]n determining whether it was indeed reasonably possible that the jury was misled by the trial court’s instructions, the charge to the jury is not to be critically dissected for the purpose of discovering possible inaccuracies of statement, but it is to be considered rather as to its probable effect upon the jury in guiding them to a correct verdict in the case. . . . The charge is to be read as a whole and individual instructions are not to be judged in artificial isolation from the overall charge.” (Internal quotation marks omitted.) State v. Spillane, supra, 757; State v. Anderson, 227 Conn. 518, 532, 631 A.2d 1149 (1993) (charge considered from standpoint of its effect on jury in guiding it to proper verdict).
In this case, the trial court charged the jury that “ [possession is defined as intentional dominion and control over the firearm accompanied by knowledge of its character. Mere presence in the vicinity of the fire*27arm, however, is not enough to establish possession.” The state contends that the overall charge, including the instructions that the state was required to prove the elements of the crime beyond a reasonable doubt and that the defendant was not required to prove his innocence, adequately informed the jury and properly guided it to a verdict. The state also claims that, because the defendant’s theory of the case was that he had not entered the car and had no knowledge of the gun, the trial court’s instruction defining possession as intentional and knowing dominion and control required the jury to find that the defendant knew of the presence and character of the firearm in order to convict him under § 53a-217. I disagree.
Although the trial court’s jury charge was a correct statement of the law regarding constructive possession; see, e.g., State v. Hill, supra, 201 Conn. 515; State v. Kas, 171 Conn. 127, 130-31, 368 A.2d 196 (1976); I am not convinced that the failure to provide further guidance to the jury, as the defendant requested, with respect to the defendant’s claimed nonexclusive possession of the vehicle and constructive possession of the firearm, was harmless beyond a reasonable doubt. The evidence at trial concerning the defendant’s possession of the firearm was neither uncontested nor overwhelming. See Neder v. United States, supra, 527 U.S. 17 (“where a reviewing court concludes beyond a reasonable doubt that [an] omitted element was uncontested and supported by overwhelming evidence, such that the jury verdict would have been the same absent the error, the erroneous instruction is properly found to be harmless”). Indeed, because the defendant stipulated to the fact that he had been convicted of a felony in the past, possession of the firearm and its operability were the only disputed issues at trial.
It is important to remember that no one occupied the vehicle at the time that the gun was discovered *28therein. Under the state’s theory, the jury was required to infer the defendant’s constructive possession of the firearm from his possession of the vehicle. A critical question for the jury to decide, therefore, was whether the defendant had been in exclusive possession of the vehicle immediately preceding his arrest, as the state had claimed, or whether he simply possessed the key and was not in exclusive possession. See State v. Delossantos, supra, 211 Conn. 277-78 (noting that “ ‘[o]ne who owns or exercises dominion or control over a motor vehicle in which [contraband] is concealed may be deemed to possess the contraband’ jury properly instructed that it may infer possession of contraband if defendant in exclusive possession of vehicle). If the jury determined that the defendant had not been in exclusive possession of the vehicle, then an inference that he had possessed the firearm would have been impermissible unless there were “other incriminating statements or circumstances tending to buttress such an inference.” (Internal quotation marks omitted.) State v. Berger, 249 Conn. 218, 225, 733 A.2d 156 (1999); State v. Alfonso, 195 Conn. 624, 633, 490 A.2d 75 (1985).7 The issue of whether the defendant had been in nonexclusive possession of the vehicle, and hence of the firearm, turned largely on the credibility of the witnesses. See State v. Morant, 242 Conn. 666, 682, 701 A.2d 1 (1997) (credibility of witnesses for jury to determine). The inferences that the jury properly could have drawn from its determination of that issue, however, are circumscribed by law. State v. Berger, supra, 225.
*29Although the evidence here suggested8 that the defendant was attempting to retrieve a personal item from the vehicle, there was no other evidence concerning the location of that item to the firearm. See, e.g., State v. Stiles, 128 N.H. 81, 86, 512 A.2d 1084 (1986) (noting that evidence of personal possessions of defendant standing in close proximity to contraband may provide sufficiently close nexus between defendant and contraband to allow jury to infer possession). Virtually no other incriminating statements or circumstances were presented in this case that would have buttressed an inference that the defendant constructively possessed the firearm. The entire case hinged on the surmise that the defendant possessed the firearm by possessing the car, and the characterization of the defendant’s possession of the vehicle, as exclusive or nonexclusive, was crucial with respect to the proper inferences that the jury could have drawn concerning possession of the firearm.
Without a proper instruction guiding the jury to make the proper inferences concerning possession of the firearm, separate from its determination of whether the defendant had possessed the vehicle exclusively or non-exclusively, I cannot conclude, beyond a reasonable doubt, that the jury was precluded from drawing an improper inference concerning the defendant’s possession of the firearm. That is, in the absence of an instruction directing the jury that, if it determined that the defendant was not in exclusive possession of the vehicle, it could not draw an inference that the defendant possessed the firearm unless there were other statements or circumstances supporting the conclusion that he possessed the gun, I cannot conclude, beyond a reasonable doubt, that the jury was not misled. The *30trial court’s instruction in this case was not sufficient to guide the jury in determining the issue of possession of the firearm and, accordingly, the failure to instruct the jury as the defendant requested was not harmless. State v. Anderson, supra, 255 Conn. 444 (harmless error doctrine “essential to preserve the principle that the central purpose of a criminal trial is to decide the factual question of the defendant’s guilt or innocence, and promotes public respect for the criminal process by focusing on the underlying fairness of the trial” [internal quotation marks omitted]).
Accordingly, I dissent.
Specifically, the defendant requested that the trial court instruct the jury that “[w]here the defendant is not [in] exclusive possession of the [vehicle wherein] the firearm was found, you may not infer that he knew of its presence and that he had control of it, unless he made some incriminating statement, or unless there are [some] other circumstances [that] tend to support such an inference.” The trial court denied that request and indicated that “what I am going to charge [the jury] ... is that possession means intentional dominion and control over the firearm accompanied by knowledge of its character. Mere presence in the vicinity of the firearm, however, is not enough to establish possession. . . . [I]f that’s what your claim is, that will be covered in the charge that I plan on giving. ... Iam going to charge [that] mere presence in the vicinity of a firearm, however, is not enough to establish possession. So to that end I am going to deny the request, your specific request to charge under the exclusive possession section because I think it is adequately covered in the charge that I am going to give under the elements of the crime.” State v. Williams, 59 Conn. App. 771, 779-80 n.3, 758 A.2d 400 (2000).
General Statutes § 53a-3 (2) provides that “ ‘[p]ossess’ means to have physical possession or otherwise to exercise dominion or control over tangible property . . . .”
As the majority opinion recites, quoting State v. Delossantos, 211 Conn. 258, 277, 559 A.2d 164, cert. denied, 493 U.S. 866, 110 S. Ct. 188, 107 L. Ed. 2d 142 (1989), “ ‘[wjhere the defendant is not in exclusive possession of the premises where the [illegal item is] found, it may not be inferred that [the defendant] knew of the presence of the [illegal item] and had control of [it], unless there are other incriminating statements or circumstances tending to buttress such an inference. Evans v. United States, 257 F.2d 121, 128 (9th Cir.), cert. denied, 358 U.S. 866, 79 S. Ct. 98, 3 L. Ed. 2d 99, reh. denied, 358 U.S. 901, 79 S. Ct. 221, 3 L. Ed. 2d 150 (1958)....'" See State v. Berger, 249 Conn. 218, 225, 733 A.2d 156 (1999); State v. Alfonso, 195 Conn. 624, 633, 490 A.2d 75 (1985). The doctrine of nonexclusive possession “was designed to prevent a jury from inferring a defendant’s possession of [an illegal item] solely from the defendant’s nonexclusive possession of the premises where the [illegal item was] found.” State v. Nesmith, 220 Conn. 628, 636 n.11, 600 A.2d 780 (1991).
The majority opinion ably recounts the relevant facts in Nesmith.
Indeed, a sufficiency of the evidence claim, contrary to a claim made by the defendant in this case concerning a failure to instruct as requested, requires this court to review the evidence presented at trial “in the light most favorable to sustaining the verdict.” (Internal quotation marks omitted.) State v. Wilcox, 254 Conn. 441, 463, 758 A.2d 824 (2000).
It is noteworthy that the evidence presented by both the state and the defendant established that Scott recently had rented the vehicle and that he lived in the vicinity. It seems to me that, particularly because the vehicle was unoccupied at the time that the firearm was discovered therein, the majority properly cannot determine, as a matter of law, that the defendant’s possession was exclusive. That the officer testified to having observed the defendant driving the vehicle some moments before discovering the firearm does not convert what is otherwise a disputed factual determination into a legal conclusion eliminating the need for proper jury guidance.
If the "totality of the evidence” includes other incriminating statements or facts demonstrating that the defendant knew of the presence of the firearm and intentionally exercised dominion and control over it, and those additional statements or facts would “reasonably and logically support [an] inference, then the jury may be instructed that it may draw such apermissive inference.” State v. Gerardi, 237 Conn. 348, 361, 677 A.2d 937 (1996). “[T]he jury must be instructed that it may infer facts only upon finding sufficient predicate . . . facts and circumstances that are rationally connected with the ultimate facts inferred.” Id.
1 emphasize that the court, must view the evidence in the light most favorable to the defendant. See State v. Lewis, supra, 245 Conn. 810; State v. Edwards, supra, 234 Conn. 388.