Is 30 days' detention a sentence?

Criminal detention does not mean a certain sentence, and it is also possible to close the case without prosecution. Detention in criminal proceedings is a compulsory method for public security organs and people's procuratorates to temporarily deprive criminals or major suspects of their personal freedom in case of legal emergency during investigation.

According to Article 89 of the Criminal Procedure Law of People's Republic of China (PRC), if the public security organ deems it necessary to arrest a detained person, it shall submit it to the people's procuratorate for examination and approval within three days after detention. Under special circumstances, the approval time can be extended by one to four days. For major suspects who commit crimes on the run, commit crimes many times or commit crimes in collusion, the time for submitting for examination and approval may be extended to 30 days.

The people's procuratorate shall, within seven days after receiving the approval letter from the public security organ, make a decision on whether to approve or disapprove the arrest. If the people's procuratorate does not approve the arrest, the public security organ shall immediately release it after receiving the notice and promptly notify the people's procuratorate to execute it. Those who need to continue the investigation and meet the conditions of obtaining a guarantor pending trial or residential surveillance shall be granted a guarantor pending trial or residential surveillance according to law.

Extended data:

Article 80 of the Criminal Procedure Law of People's Republic of China (PRC), the public security organ may detain a flagrante delicto or a major suspect under any of the following circumstances:

(1) Being prepared to commit a crime, committing a crime or being discovered 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 81 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.

References:

Baidu encyclopedia-criminal detention

China People's Congress Network-People's Republic of China (PRC) Criminal Procedure Law