In order to ensure the smooth progress of criminal proceedings, the detention or arrest of criminal suspects by relevant authorities according to law is called coercive measures. The executor of compulsory measures must go through the relevant application to take compulsory measures against the criminal suspect, otherwise it is illegal to implement compulsory measures. Criminal coercive measures generally include: summoning by force, obtaining a guarantor pending trial, residential surveillance, detention and arrest. The applicable objects are criminal suspects and defendants, and compulsory measures shall not be taken against litigation participants and outsiders.