technical investigation measures refer to a specific technical means adopted by the investigation organ after strict examination and approval in accordance with the relevant provisions of the state in order to detect specific criminal acts. Technical investigation behavior is the investigation behavior using technical investigation measures.

It usually includes secret technical means such as electronic interception, telephone interception, electronic monitoring, secret photo-taking, video recording and email inspection.

1. Electronic interception (microphone interception): Electronic interception refers to the interception of direct oral conversations between people through eavesdropping equipment. It's a bit like the very popular "Eavesdropping Storm".

2. Telecom monitoring: Telecom monitoring refers to monitoring the connection of various communication modes.

3. Electronic monitoring: Electronic monitoring is different from telecom monitoring. Electronic monitoring mainly obtains image information through two means. One is to take secret photos and videos; The second is to use electronic equipment to monitor, track and locate the investigation counterpart.

4. Mail inspection: Mail inspection refers to the secret inspection of paper communication and logistics such as parcels and express delivery.

5. Secret search and secret collection: Secret search and secret collection refers to the secret search of the location and articles of the investigation counterpart, as well as the extraction of relevant evidence such as certificates and documentary evidence.

6. Outside investigation: Outside investigation refers to the comprehensive means of tracking, stalking, waiting, monitoring and secret arrest with certain technical content in the technical investigation department.

7. Network investigation: Network investigation refers to a kind of means of secret investigation on the Internet.

How to convict illegal surveillance

Illegal surveillance may constitute the crime of illegally using special equipment for eavesdropping and stealing photos. The identification criteria mainly include the following four points:

1. On the object, the object of this crime is the state's management order of special equipment for eavesdropping and stealing photos;

2. Objectively, this crime is manifested in the criminal suspect's illegal use of special equipment for eavesdropping and stealing photos, which has caused serious consequences. It mainly includes two situations: first, it has the right to use the special equipment for eavesdropping and stealing photos, and uses the special equipment for eavesdropping and stealing photos without approval; Second, unauthorized use of special equipment for eavesdropping and stealing photos;

3. On the subject, the subject of this crime is a general subject, and any natural person who has reached the age of criminal responsibility and has criminal responsibility ability can become the subject of this crime;

4. Subjectively, this crime is intentional, and negligence does not constitute this crime.

To sum up, Xiao Bian gave an answer to the conditions that public security organs must meet when taking technical investigation measures, hoping to help you.

legal basis

article 144 of the criminal procedure law of the people's Republic of China, people's procuratorates and public security organs may, according to the needs of investigating crimes, inquire about and freeze the deposits, remittances, bonds, stocks, fund shares and other properties of criminal suspects in accordance with regulations. The relevant units and individuals shall cooperate. If the criminal suspect's deposits, remittances, bonds, stocks, fund shares and other properties have been frozen, they may not be frozen again.