The proof material has the witness's signature and handprint, which plays the role of evidence and has legal effect. However, if a witness proves that the material is inconsistent with the facts, the evidential force of the material will be lost and the court will not accept it. The effectiveness of testifying in court and the effectiveness of proof materials. The law does not stipulate that the parties must press their fingerprints in addition to their signatures.

Legal analysis

Only when the parties sign and press their fingerprints, and the parties have civil capacity, voluntarily sign the agreement, and the contents of the agreement do not violate the mandatory provisions of the law and public order and good customs, the agreement is valid. A signature and a fingerprint have the same effect, as long as it is my own. Therefore, in general, the signature on the contract is valid, and it is not necessary to have a handprint. Of course, fingerprinting can further prove the authenticity of the contract signing subject, help to ensure the authenticity of the contract signing subject and reduce the contract risk. Therefore, if conditions permit, the parties may require the borrower to print their own handprints on the IOUs, which can also prevent others from signing under false names. Proof materials must be signed or fingerprinted to be valid. But it can't be said that as long as the fingerprint and signature are pressed, they will have legal effect. It depends on who requested it, who has the status of law enforcement and who is engaged in this work, all of which have direct legal effect.

legal ground

People's Republic of China (PRC) Civil Code

Article 143 A civil juristic act that meets the following conditions is valid: (1) The actor has corresponding capacity for civil conduct; (2) the meaning is true; (three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.

Article 490 Where the parties conclude a contract in the form of a contract, the contract is formed when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.