What is public security technical investigation?

Public security technical investigation refers to a specific technical means adopted by the investigation organ in order to investigate specific criminal acts after strict examination and approval according to relevant state regulations. Technical investigation behavior is the investigation behavior using technical investigation measures.

Technical investigation measures usually include: electronic monitoring, telephone monitoring, electronic monitoring, secret photography, video recording, mail inspection and other secret special technical means. Technical reconnaissance measures in a broad sense also include: radio reconnaissance, aerial reconnaissance, satellite reconnaissance, etc.

According to article 148 of China's criminal procedure law, the scope of application of public security technical investigation is as follows:

1. After filing a case, the public security organ can take technical investigation measures against crimes endangering national security, terrorist activities, organized crimes of underworld nature, major drug crimes or other crimes seriously endangering society according to the needs of investigating crimes and through strict approval procedures.

2. To pursue a criminal suspect or defendant who is wanted at large or whose arrest has been approved or decided, technical investigation measures necessary for the pursuit may be taken upon approval.

Extended data

The important role of public security technical investigation

Technical investigation, as an important and emerging means of criminal investigation to find out the facts of a crime, has been used to varying degrees in the practice of various countries. Compared with traditional investigation methods, technical investigation is secret, forward-looking and high-tech.

With the increasingly diversified forms of crime in today's society, the traditional means of investigation are somewhat inadequate, and the advantages of technical investigation are more obvious. At the same time, due to its high confidentiality, technical investigation measures inevitably conflict with citizens' privacy rights.

Validity period of technical investigation

The approval decision is valid for three months from the date of issuance. Those who do not need to continue to take technical investigation measures shall be lifted in time; For complex and difficult cases, if technical investigation measures need to be taken after the expiration of the time limit, the validity period may be extended after approval, and each time shall not exceed three months.

Baidu encyclopedia-criminal procedure law

Baidu Encyclopedia: Technical Investigation Measures