After arriving at the detention center, the police station began criminal investigation of the case. For ordinary criminal cases, the longest detention period is 37 days, and criminal detention is only a short-term measure. Police stations usually apply for arrest.
When the public security organ carries out detention, it must show the detention certificate and order the detained person to sign (seal) the detention certificate and press the fingerprint. Refuse to sign (seal) or fingerprint, the person who executes the detention shall indicate it. If the detainee resists detention, the executor has the right to use coercive methods, including the use of restraints; After detention, the organ that decides to detain shall notify the family of the detained person or his unit within 24 hours of the reasons and place of detention, unless there are circumstances that hinder the investigation or cannot be notified.
If it is too late to go through the detention formalities in an emergency, the people's procuratorate may first take the suspect to the public security organ and go through the detention formalities immediately. Due to the laws of our country, detention is carried out by public security organs.
Conditions of detention:
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. Found criminal evidence around or at the residence;
4. Attempted suicide, escape or escape after committing a crime;
5. It is possible to destroy, forge evidence or collude with others;
6, do not speak the real name, address, unknown;
7. Suspected of committing crimes on the run, committing crimes many times, and committing crimes in partnership.
Legal basis:
Article 85 of the Criminal Procedure Law of People's Republic of China (PRC), when a public security organ detains a person, it must produce a detention permit. After detention, the detained person shall be immediately sent to the detention center for custody, and shall not exceed twenty-four hours. Unless it is impossible to notify or the notification of suspected crimes endangering national security or terrorist activities may hinder the investigation, the family members of the detained person shall be notified within 24 hours after detention. After the circumstances that hinder the investigation disappear, the family members of the detained person shall be notified immediately.