California, United States of America
The following excerpt is from People v. Pacheco, F072425 (Cal. App. 2017):
offense relevant for a permissible purpose, such as showing identity, common scheme or plan, or intent: "Evidence of uncharged crimes is admissible to prove identity, common design or plan, or intent only if the charged and uncharged crimes are sufficiently similar to support a rational inference of identity, common design or plan, or intent." (People v. Kipp, supra, 18 Cal.4th at p. 369, italics added.)
Different degrees of similarity are required for the different permissible purposes:
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