Public opinion monitoring can help public security organs monitor network information. It has monitoring function, also known as "network public opinion monitoring", that is, it integrates Internet information collection technology and information intelligent processing technology, and realizes users' information needs such as network public opinion monitoring and news topic tracking through automatic crawling, automatic classification and clustering, and thematic focus, and forms analysis results such as briefings, reports and charts. , so as to provide analytical basis for customers to fully grasp the ideological trends of the masses and conduct correct public opinion guidance.
The implementation of public opinion monitoring must meet three conditions:
1. The monitoring subject must be a state department with law enforcement power;
2. The monitored object has a major suspicion of endangering society and endangering the country;
3. The monitoring procedures must be reasonable and legal, and shall not infringe on personal privacy and normal commercial interests, and must safeguard the legitimacy of individuals and groups.