Legal analysis: (1) the records of the inspection, inspection, search, extraction or seizure of the list are not signed by the investigators, the article holders and witnesses, or the name, characteristics, quantity and quality of the articles are not indicated;

(2) Photographs, videos and copies of physical evidence, and copies and copies of documentary evidence are not marked as the same as the original, and the time of copying is not marked, or are not signed or sealed by the person who collected or transferred them;

(3) Photographs, videos and copies of physical evidence, and copies and copies of documentary evidence without producer's explanation on the production process and the original and its storage place, or without signature;

(4) Having other defects.

Legal basis: Article 73 of the Interpretation of the Criminal Procedure Law of the Supreme People's Court stipulates that the material evidence and documentary evidence extracted or seized during the inquest, inspection and search shall not be used as the basis for finalizing the case if there is no record or list attached and the source of the material evidence and documentary evidence cannot be proved.