The Education Bureau can find out the teacher's home address. Because teachers need to provide relevant personal information when applying for teacher qualification certificate, including name, ID number, education, work experience, home address, etc. This information will be entered into the database of the education department and can be queried and used. When recruiting teachers, this information will also be recorded in the teachers' personal files, which can be consulted and used by the education bureau and other relevant departments. So the Education Bureau can find out the teacher's home address.