What is the legal basis of criminal detention in different places and the applicable conditions of detention? Criminal detention must meet two conditions at the same time: (1) The object of detention is a flagrante delicto or a major suspect. An active criminal refers to a person who is committing a crime, and a major suspect refers to a person who has evidence to prove that he is suspected of a major crime. The public security organ may detain in advance: 1. It is possible to destroy, falsify evidence or collusion. 2, do not speak the real name, address, unknown. 3. Suspected of committing crimes on the run, committing crimes many times, and committing crimes in partnership. 4. Being prepared to commit a crime, committing a crime or being discovered immediately after committing a crime. 5. The victim or the person who saw it with his own eyes identified him as a crime. 6. Evidence of a crime is found around or at the residence. 7. Attempted suicide, escape or escape after committing a crime. (2) There is one of the legal emergencies. In directly accepted cases, the criminal suspect and defendant also have the right to decide to take custody under the following two circumstances: 1, attempted suicide, escape or escape after committing a crime; 2. It is possible to destroy, forge evidence or collude with others. After the people's procuratorate decides to detain, it shall be executed by the public security organ. Article 82 of the Criminal Procedure Law of People's Republic of China (PRC) * * * A flagrante delicto or a major suspect under any of the following circumstances may be detained by the public security organ in advance: (1) A person who is preparing to commit a crime, commits a crime or is found immediately after committing a crime; (2) The victim or a witness on the spot identifies him as a criminal; (3) criminal evidence is found around him or at his residence; (four) attempted suicide, escape or escape after committing a crime; (5) It is possible to destroy or forge evidence or collude with others; (six) do not speak the real name and address, the identity is unknown; (7) Being seriously suspected of committing crimes on the run, committing crimes for many times or committing crimes in association. Article 83 When a public security organ carries out detention or arrest in a different place, it shall notify the public security organ in the place where the detained or arrested person is located, and the public security organ in the place where the detained or arrested person is located shall cooperate. I hope that through the above, you can have a deeper understanding of the legal basis of criminal detention in different places and some related issues. If your situation is complicated, this website also provides online consultation service for lawyers, and you are welcome to make legal consultation.