Legal analysis: 1. All staff and students should return to their positions at least 14 days in advance according to the return time. All teachers and students who leave Beijing during the holidays should report to the school and the class teacher in time. 3. People who have been to high-risk areas in the past 14 days, or who have taken the same vehicle or crossed the activity track with infected people must take the initiative to report. 4. Some kindergartens require that they must return to Beijing 14 days before the start of school, and come back from middle and high-risk areas. When entering the kindergarten, you must provide negative proof of nucleic acid test within 48 hours.

Legal basis: Article 42 of the Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases stipulates that when an infectious disease breaks out or becomes prevalent, the local people's government at or above the county level shall immediately organize forces to prevent and control it according to the prevention and control plan and cut off the transmission route of the infectious disease. When necessary, the following emergency measures can be taken and reported to the people's government at the next higher level for announcement: restricting or stopping fairs, theaters or other activities where people gather; Suspension of work, business or courses; Seal up or seal up public drinking water sources, food and related items contaminated by infectious disease pathogens; Control or cull infected wild animals, domestic animals and poultry; Close places that may lead to the spread of infectious diseases. When the people's government at a higher level receives the report of the people's government at a lower level on taking the emergency measures listed in the preceding paragraph, it shall make a decision immediately. The lifting of emergency measures shall be decided and announced by the original decision-making organ.