Relevant basis: "Comprehensive Reply Opinions of the Ministry of Public Security on Issues Related to Loss Reporting and Replacement of Resident Identity Cards" Citizens' behavior of reporting loss and replacement of certificates is also to inform the public security organs of the fact that they have lost their certificates, and there is no need to report loss and make a newspaper announcement, and there is no relevant law requiring citizens to report loss and make a newspaper announcement after losing their resident identity cards. Resident identity card is the legal identity document of citizens, and its main function is to prove their identity when they engage in related activities. When a citizen uses a resident identity card to prove his identity, all relevant departments have the obligation to check the consistency of the witness card, and can handle relevant business for the holder only after it is confirmed to be correct. If a resident's ID card is lost and is fraudulently used by others, the fraudulent user and the relevant departments should bear corresponding legal responsibilities, and the person who lost his ID card is not responsible for the behavior that he did not implement. The Law on Resident Identity Cards also clearly stipulates that anyone who fraudulently uses another person's resident identity card shall be fined between 200 yuan and 1,000 yuan by the public security organ or detained for less than 10 days. If there are illegal gains, the illegal gains shall be confiscated.