Criminal investigation brigade telephone 24 hours.

Criminal investigation brigade is a department under the public security organs. If you need to contact, you can call 1 10 directly.

Criminal investigation measures:

1, investigation measures. Such as on-site investigation, inspection, investigation and experiment, investigation and visit, appraisal, interrogation, inquiry and notification. ;

2. Commemorative measures. Such as tracking, intercepting, searching, waiting, wanted, etc. ;

3. Compulsory measures. Such as summons, detention, arrest, search, bail pending trial, residential surveillance, etc.

Criminal investigation procedure:

1, investigate behavior. In our country, investigation behavior includes not only the special investigation activities carried out by investigators according to law, but also the compulsory measures taken to prevent active criminals and criminal suspects from continuing to commit crimes, escape, destroy evidence or commit suicide. According to the provisions of the Criminal Procedure Law, China's investigation behavior system should include the following contents: interrogation of criminal suspects, interrogation of witnesses, victims, inquest, inspection, search, seizure of physical evidence, documentary evidence, identification, wanted, summons, bail pending trial, residential surveillance, detention and arrest.

2. The investigation is over. The conclusion of investigation refers to the litigation activities in which the investigation organ believes that the facts of the case have been ascertained and the evidence is sufficient enough to determine whether the criminal suspect constitutes a crime and whether criminal responsibility should be investigated, and decides to end the investigation, handle the case or put forward handling opinions according to law.

Legal basis: Article 3 of the Criminal Procedure Law of People's Republic of China (PRC).

Public security organs are responsible for the investigation, detention, execution of arrest and preliminary examination of criminal cases. The people's procuratorate shall be responsible for the prosecution, approval of arrest, investigation and prosecution of cases directly accepted by procuratorial organs. The people's court is responsible for the trial. Except as otherwise specified by law, no other organ, organization or individual has the right to exercise these powers. People's courts, people's procuratorates and public security organs must strictly abide by the relevant provisions of this law and other laws in criminal proceedings.