Indicate the name, number, quantity, characteristics and source of the property or documents, which shall be signed by the investigators, holders and witnesses, one for the holder, one for the custodian of the public security organ and one for future reference. If the property and certificate of the holder cannot be determined or the holder refuses to sign, the investigator shall indicate it in the list. If valuables such as cultural relics, gold and silver, jewelry, precious calligraphy and painting are seized according to law, photos or videos shall be taken and appraised in time.