California, United States of America
The following excerpt is from People v. Houston, F067414 (Cal. App. 2015):
out-of-court identification to be corroborated by an in-court identification. Thus, a testifying witness's out-of-court identification can be used to establish the defendant's identity as the perpetrator of a crime "and can, by itself, be sufficient evidence of the defendant's guilt even if the witness does not confirm it in court." (People v. Boyer (2006) 38 Cal.4th 412, 480.)
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