Code of Civil Procedure Article 357
Except in the case where the opposing party does not dispute the authenticity of the document, the party who introduces a private document shall prove its authenticity.
中文原文 民事訴訟法第357條
私文書應由舉證人證其真正。
但他造於其真正無爭執者，不在此限。
但他造於其真正無爭執者，不在此限。