Let’s do it this way! Certification materials refer to written materials issued by organizations or individuals to prove the true circumstances of relevant persons or events. Usually called a letter of certification or a certification. 1. The general format and requirements for supporting materials are: 1. Title. Generally, the main content to be proved is used as the title. For example, "Proof of ×××'s bribery." Don't just write "certifying materials" or "certification letters" or "certificates," because this will cause inconvenience to the other party's ability to find and use these materials in the future. 2. Look up. Some certification materials have a clear main sending unit, and the full name of the main sending unit must be written in the opening box of the certification materials; some general certification materials do not need to include the main sending unit. 3. Text. This is the main part of the certification materials, and the true circumstances of the relevant persons or events that need to be proven should be clearly stated. If it is an investigation supporting material, relevant investigation clues can also be provided. 4. Signature. After the certification materials are written, the full name of the unit or individual providing the certification materials should be written on the lower right side of the certification materials, and the date of certification should be noted. 2. When writing certification materials, you should pay attention to the following issues: 1. The person who writes certification materials should treat the party and the person being certified with a highly responsible and serious attitude, adhere to the principle of seeking truth from facts, and must not issue evidence that is inconsistent with the facts for selfish reasons. Proof, let alone false proof. 2. The language of the proof materials should be very clear and affirmative, and should not be vague or ambiguous. Words such as "probably", "possible", and "according to analysis" should not be used. 3. All supporting materials should be reviewed by the person in charge of the unit and stamped with the official seal. For certification materials issued by an individual, the person must sign and seal (or leave a fingerprint), and the unit must indicate the certifier's position, political status, etc. on the certification materials (generally do not add "reliable" or "for reference only" etc. assertion).