The admissibility and weight of evidence to prove the defectiveness of an article alleged to have caused an injury, or to establish or disprove negligence in connection therewith, are governed by the general principles of evidence.

• 证明产品存在致害缺陷和证实或否定产品缺陷与损害事实之间因果联系的证据的可采纳性，有效性受有关证据的一般原则所约束。