Need. The application for notarization must be signed by the applicant. If it is entrusted, the power of attorney also needs the signature of the parties themselves. When handling notarization, a notarization institution shall examine the following matters respectively according to the rules for determining different notarization matters: (1) the identity of the parties, the qualifications for applying for notarization and the corresponding rights; (two) whether the contents of the documents provided are complete, whether the meaning is clear, and whether the signature and seal are complete; (3) Whether the certification materials provided are true, lawful and sufficient; (4) Whether the matters applied for notarization are true and lawful. Article 28 of the Notary Law of People's Republic of China (PRC) * * * When handling notarization, the notary office shall examine the following matters respectively according to the rules for handling different notarization matters: (1) the identity of the parties, the qualifications for applying for notarization and the corresponding rights; (two) whether the contents of the documents provided are complete, whether the meaning is clear, and whether the signature and seal are complete; (3) Whether the certification materials provided are true, lawful and sufficient; (4) Whether the matters applied for notarization are true and lawful.