What are the essential elements of possession of a controlled substance?

Appellant is correct. "The essential elements of possession of a controlled substance are 'dominion and control of the substance in a quantity usable for consumption or sale, with knowledge of its presence and of its restricted dangerous drug character. Each of these elements may be established circumstantially.' [Citations.]" (People v. Palaschak (1995) 9 Cal.4th 1236, 1242, italics added.)

We begin with the well-settled standard for assessing the sufficiency of the evidence to sustain a criminal conviction. In reviewing a claim of insufficiency of the evidence, "we review the entire record in the light most favorable to the prosecution to determine whether it contains evidence that is reasonable, credible and of solid value, from which a rational trier of fact could find that the elements of the crime were established beyond a reasonable doubt. [Citations.] We need not be convinced of the defendant's guilt beyond a reasonable doubt; we merely ask whether ' "any rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt." [Citation.]' [Citation.] We must draw all reasonable inferences in support of the judgment. [Citation.] It is not our function to reweigh the evidence, reappraise the credibility of witnesses, or resolve factual conflicts, as these are functions reserved for the trier of fact. We may not reverse a conviction for insufficiency of the evidence unless it appears that upon no hypothesis whatever is there sufficient substantial evidence to support the conviction. [Citation.]" (People v. Tripp (2007) 151 Cal.App.4th 951, 955.)