Legal basis: Article 81 of the Criminal Procedure Law of People's Republic of China (PRC), if the measures of obtaining a guarantor pending trial are not enough to prevent the following social dangers, criminal suspects and defendants who have evidence to prove criminal facts and may be sentenced to more than fixed-term imprisonment shall be arrested: (1) Those who may commit new crimes; (two) there is a real danger of endangering national security, public safety or social order; (three) may destroy or falsify evidence, interfere with the testimony of witnesses or collusion; (4) It is possible to take revenge on the victim, prosecutor or accuser; (5) attempting to commit suicide or escape. When approving or deciding to arrest, the nature, circumstances, confession and lighter punishment of the criminal suspect and defendant should be taken as factors to consider whether social danger may occur. If there is evidence to prove that there are criminal facts, it may be sentenced to fixed-term imprisonment of more than 10 years, or if there is evidence to prove that there are criminal facts, it may be sentenced to fixed-term imprisonment of more than 10 years, or if there is intentional crime or the identity is unknown, it shall be arrested. If the circumstances are serious, a criminal suspect or defendant who has been released on bail pending trial or under residential surveillance may be arrested.