Legal analysis: In criminal proceedings, if a witness gives false testimony, it will constitute the crime of perjury. Anyone who constitutes the crime of perjury shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention; if the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than seven years. In civil litigation, if a witness commits perjury, it may constitute an obstruction of litigation, and the court may take compulsory measures such as reprimands, fines, and detention in accordance with relevant legal provisions. For perjury, but the circumstances are obviously minor and the harm is not great, it should not be considered a crime.
Legal basis: "Article 305 of the Criminal Law of the People's Republic of China and the People's Republic of China. In criminal proceedings, witnesses, appraisers, recorders, and translators who have circumstances that are important to the case intentionally Anyone who makes false certifications, appraisals, records, or translations with the intention of framing others or concealing criminal evidence shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention; if the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than seven years.