— Defendant appeals from a judgment of conviction of unlawfully possessing heroin (Health & Saf. Code, § 11500) and from an order denying his motion for new trial. Jury trial was properly waived and by stipulation the *284 cause was submitted on the testimony in the transcript of the preliminary hearing, together with additional testimony of one of the arresting officers. Defendant contends that the evidence is insufficient to show that he had that knowledge of the presence of the drug which is an essential element of the crime of possession. Although the evidence does not appear very convincing, the question of the persuasive effect of such-evidence is not for an appellate court. And we cannot say that the circumstances hereinafter related, as a matter of law, at most give rise to a mere suspicion and do not permit a reasonable inference of guilt. Accordingly, the judgment and order appealed from should be affirmed.
During the month of September 1959, defendant lived in and managed a rooming house owned by Henry Smith. About 20 or 30 feet from defendant's room, and separated from it by a hall and a community living room, was a storeroom locked with a padlock. The instant prosecution followed the hereinafter described discovery by the police of heroin in this storeroom on September 28, 1959. Concerning this storeroom Smith testified as follows:
“Q. Mr. Smith, did you use the storeroom from time to time? A. Well, we put rugs and things that was left, in there —and that’s about all.
11Q. Who else used the storeroom besides yourself ? A. Oh, Johnny [defendant] and myself.
“Q. Did anyone else have the key to the storeroom? A. No, just the two of us.”
It further appears, however, that other persons could have had unauthorized access to the storeroom. Smith testified that he kept the only key hanging in his shop, which was in the same block as the rooming house. Here, so far as the evidence shows, the key was available to anyone who might choose to “borrow” it.
More directly, Smith testified that he had given the key to the defendant from time to time; a “night or two” or “three or four days” before September 28 Smith noticed that the key was not in his shop and asked defendant if he had it; defendant “said Yes . . . and I [Smith] didn’t think any more about it.”
At 9 :15 a. m. on September 28 Police Officer Hanks knocked at the door of defendant’s room, informed defendant that he was an officer, and “told the defendant that I understood that he was peddling narcotics; he denied that. I asked him if he had any narcotics in his room, and he stated he did not. I then asked him if he would mind if I would search his room, and *285 he stated he would not. And I searched it and found nothing . . . .” Officer Hanks “asked the defendant if he had a key to [the storeroom] . . . and he stated he did not.”
The officer then went to the nearby place of business of Mr. Smith. He asked Smith for the key and Smith found that ‘ ‘ It was gone.' ’ Smith gave the police permission to force the storeroom lock. In the storeroom Officer Hanks found a folding bed in which was a coin purse containing ten bindles of heroin. At about 10:15 a. m. on the 28th the officer placed defendant under arrest. Defendant “denied any knowledge of the bindles that I found. He denied having a key. He did state that approximately three weeks ago he had had the key to that storeroom, but did not have it in his presence at this time. ’ ’
Officer Grennan testified that after defendant’s arrest they had the following conversation: “I stated to him, ‘How come you started fooling with narcotics again, Johnny?’ He says, ‘Well, when I got out of the joint [a reference to prior convictions and service of a prison term], there wasn’t any work to be had, and what could I do? I didn’t want to starve; so I went back to fooling with narcotics again. ’ I further questioned him as to whom he had been scoring [buying] from, and he told — he’d been scoring from a fellow by the name of ‘Blackburn.’ I said, ‘How much do you score at [a] time?’ And he said, ‘Sometimes it varies. Sometimes a half a piece and sometimes a piece [ounce].’ ” In his conversation with Officer Grennan defendant denied that the heroin found in the storeroom was his, and said that he had been in possession of the storeroom key but was not in possession thereof at the time of his arrest.
The People correctly agree with defendant that to establish unlawful possession of narcotics it must be shown that the accused exercised dominion and control over the drug with knowledge of its presence and narcotic character.
(People
v.
Winston
(1956),
The following decisions of District Courts of Appeal are illustrative of reversals of convictions of unlawful possession by application of the last stated rule or variance thereof:
*286
People
v.
Stanford
(1959),
As might be expected, no sharp line can be drawn to distinguish the congeries of facts which will and that which will not constitute sufficient evidence of a defendant’s knowledge of the presence of a narcotic in a place to which he had access, but not exclusive access, and over which he had some control, but not exclusive control. The cases next cited illustrate evidential factors which, added to nonexclusive dominion, will support a finding of knowing possession.
In
People
v.
Mateo
(1959),
In the present case there is clearly sufficient evidence that defendant at about the time of the charged offense had knowingly possessed some narcotics, for he admitted to Officer Grennan that he “went back to fooling with narcotics again” and had bought from “Blackburn” in quantities of “Sometimes a half a piece and sometimes a piece.” But this alone is not enough to show that defendant knowingly possessed the ten bindles of heroin which Officer Hanks found in the storeroom and which are the subject of the present conviction. However, added to the foregoing admissions of possession of narcotics in general are the following circumstances as to defendant’s statements and conduct concerning the key to the storeroom, which circumstances permit the inference that defendant manifested consciousness of guilt as to (and therefore knowledge of) the presence of the narcotics in the storeroom to which he had nonexclusive access: A few days before defendant’s arrest on September 28 he told his employer, Smith, that he (defendant) had the store
*289
room key, but on the 28th he told the arresting officers that he had not had it for three weeks. Furthermore, defendant did not explain how the key had left his possession. As manager of the rooming house defendant would be expected to know what he had done with the key and not to treat it as of so little importance that it could pass from his keeping without his being aware of its disappearance. From defendant’s failure to explain what happened to the key the trier of fact could infer that he had no exculpatory explanation
(People
v.
Adamson
(1946),
Defendant points to the following possibilities suggestive of his innocence: So far as the evidence shows he had managed the rooming house only during September, and the heroin could have been concealed in the storeroom long before defendant had access to it. The key hung in Smith’s shop, a place open to the public, and the storeroom opened off a community living room, so that unauthorized persons might have taken the key, perhaps had a duplicate made, and entered the storeroom. The padlock may have been of a kind which almost any key would open. Smith, the owner of the premises where the drug was found, had “every reason to try to place the responsibility for the narcotics on someone other than himself.”
The credence and ultimate weight to be given the evidence of the various particular circumstances are of course for the trier of fact, and “It is the trier of fact, not the appellate court, that must be convinced of a defendant’s guilt beyond a reasonable doubt. If the circumstances reasonably justify the trier of fact’s findings, the opinion of the reviewing court that the circumstances might also be reasonably reconciled with a contrary finding does not warrant a reversal of the judgment.”
(People
v.
Robillard
(1960),
ante,
pp. 88, 93 [1, 2] [
The rule that “to justify a conviction on circumstantial evidence the facts and circumstances must not only be entirely consistent with the theory of guilt but must be inconsistent with any other rational conclusion”
(People
v.
Yrigoyen
(1955),
The existence of possible exculpatory explanations, whether they are simply suggestions not excluded by the evidence or even where they could be reasonably deduced from the evidence, could not justify this court’s rejecting the determination of the trier of fact that defendant is guilty unless on appeal it “be made clearly to appear that upon no hypothesis whatever is there sufficient substantial evidence to support the conclusion reached in the court below.”
(People
v.
Tom Woo
(1919),
Por the reasons above stated, the judgment and order appealed from are affirmed.
Gibson, C. J., Traynor, J., MeComb, J., Peters, J., White, J., and Dooling, J., concurred.
