presentation of documentary evidence, material evidence and audio-visual material;

出示书证、物证和视听资料；

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This can improve other related audio-visual information system to protect the probative value of the scientific finds, including the exposition of judgement and evidence investigation.

同时可以完善其他相关制度来保障视听资料证明力的科学认定，包括自由心证公开制度和证据调查令制度。

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China's three major procedural laws made specific provisions of evidence, but without any provisions about the information stored in electronic equipment except the audio-visual materials.

我国三大诉讼法中对证据形式做出了具体的规定，但现有的证据立法中对除视听资料以外的其它电子产品存储的资料无任何规定。

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