What is the test for admitting unadjudicated "other criminal activities" and evidence of criminal activity after the crime has been committed?

Under our recent opinion in People v. Balderas (1985) 41 Cal.3d 144, 222 Cal.Rptr. 184, 711 P.2d 480, we must reject defendant's contentions that the court erred in admitting evidence of unadjudicated "other criminal activities" and evidence of criminal activities that occurred after the commission of the capital offense. We concluded in Balderas that such evidence [755 P.2d 913] of criminality, if proved beyond a reasonable doubt, may properly be considered by

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