From Sunrider Corp. v. Bountiful Biotech Corp., 2010 U.S. Dist. LEXIS 117347 (C.D. Cal. Oct. 8, 2010):
"Witness testimony translated from a foreign language must be properly authenticated and any interpretation must be shown to be an accurate translation done by a competent translator." Jack v. Trans World Airlines, Inc., 854 F. ...
From Sunrider Corp. v. Bountiful Biotech Corp., 2010 U.S. Dist. LEXIS 117347 (C.D. Cal. Oct. 8, 2010):
“Witness testimony translated from a foreign language must be properly authenticated and any interpretation must be shown to be an accurate translation done…