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. Criminal detention must meet two conditions at the same time: first, 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. Second, it has one of the legal emergencies.
Detention center is a place of detention established according to the current laws, regulations, rules and relevant provisions of our country, which is managed by the public security department in a unified way. The detention center was established according to the Regulations on Administrative Penalties for Public Security passed by the National People's Congress Standing Committee (NPCSC).