California, United States of America
The following excerpt is from People v. Thurnan, D072678 (Cal. App. 2019):
"[U]nless the testimony is physically impossible or inherently improbable, testimony of a single witness is sufficient to support a conviction." (People v. Young (2005) 34 Cal.4th 1149, 1181; People v. Leigh (1985) 168 Cal.App.3d 217, 221 ["the testimony of a single witness is sufficient to uphold a judgment even if it is contradicted by other evidence, inconsistent or false as to other portions"].)
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