What is the test for credibility in a witness testimony?

" 'Although we must ensure the evidence is reasonable, credible, and of solid value, nonetheless it is the exclusive province of the trial judge or jury to determine the credibility of a witness and the truth or falsity of the facts on which that determination depends. [Citation.] Thus, if the verdict is supported by substantial evidence, we must accord due deference to the trier of fact and not substitute our evaluation of a witness's credibility for that of the fact finder. [Citations.]' (People v. Jones (1990) 51 Cal.3d 294, 314 [].)" (People v. Ochoa (1993) 6 Cal.4th 1199, 1206.) An "inherent improbability claim ... based entirely on comparisons, contradictions and inferences ... amounts to

Page 16

nothing more than an attack on witness credibility, and cannot be the basis for a reversal of the judgment on appeal." (People v. Ennis, supra, 190 Cal.App.4th at p. 725.)