What is the test for admitting evidence of a prior criminal act against a defendant?

"Evidence Code section 1101, subdivision (a) generally prohibits the admission of evidence of a prior criminal act against a criminal defendant 'when offered to prove his or her conduct on a specified occasion.' Subdivision (b) of that section, however, provides that such evidence is admissible when relevant to prove some fact in issue, such as motive, intent, knowledge, identity, or the existence of a common design or plan. [] 'The admissibility of other crimes evidence depends on (1) the materiality of the facts sought to be proved, (2) the tendency of the uncharged crimes to prove those facts, and (3) the existence of any rule or policy requiring exclusion of the evidence.' [Citation.] Evidence may be excluded under Evidence Code section 352 if its probative value is 'substantially outweighed by the probability that its admission would create substantial danger of undue prejudice, of confusing the issues, or of misleading the jury.' [Citation.] 'Because substantial prejudice is inherent in the case of uncharged offenses, such evidence is admissible only if it has substantial probative value.' " (People v. Lindberg (2008) 45 Cal.4th 1, 22-23.)