The fingerprints and blood samples collected have no effect. The country is now establishing a fingerprint database, and many ordinary people's fingerprints are stored in the database, so don't worry. Information such as fingerprints will be of great help to public security personnel in investigating criminal cases. When citizens apply for resident identity cards, they should register fingerprint information. It is legal for the police to collect fingerprints. Since it is collected, it must be stored in the system for the record.
Fingerprints are unique, and no two fingerprints are exactly the same. Although identical twins are highly similar in pattern, their details are not exactly the same, but there are some differences. In addition, a person's fingerprints of different fingers are also different. In principle, a person's fingerprints are lifelong. After the child grows up, the fingerprint only becomes bigger and thicker, and the characteristics such as the shape and quantity of the lines remain unchanged. Scanning fingerprints is very fast and easy to use. When reading fingerprints, users must contact their fingers with the fingerprint collection head, and direct contact with the fingerprint collection head is the most reliable way to read human biological characteristics.
Article 3 of the Law of the People's Republic of China on Resident Identity Cards includes: name, gender, nationality, date of birth, place of permanent residence, citizenship number, personal photo, fingerprint information, validity period of the certificate, and issuing authority.
Citizenship number is a unique and life-long identity code for every citizen, which is compiled by public security organs according to the national standard of citizenship number.
Citizens applying for obtaining, renewing or replacing resident identity cards shall register their fingerprint information.
Article 4 Resident identity cards shall use standardized Chinese characters and digital symbols that meet national standards.
The organs of self-government of ethnic autonomous areas may, according to the local actual situation, decide to use the written language of the ethnic group exercising regional autonomy or choose the written language commonly used in the local area as the content registered in Chinese on the resident identity card.