In-service teachers have good political and professional qualities and good professional ethics, can strictly abide by the examination discipline and related requirements, and can skillfully operate various security equipment in invigilation. Official website of Guiyang Education Bureau introduced that teachers should meet the requirements of invigilators, have good political and professional qualities and good professional ethics, be able to strictly abide by examination discipline and related requirements, and be proficient in operating various security equipment during invigilation.