Of course. Teachers make mistakes when entering grades. In this case, they can be modified before the end of the current semester. Yunnan Police Officer College, located in Kunming, Yunnan Province, is a full-time public undergraduate college jointly founded by Yunnan Provincial Department of Education and Yunnan Provincial Public Security Department, which is mainly managed by the public security department. Yunnan Police Officers College was founded in 1950, started secondary school education in 1978, started specialized education in 1984, and was upgraded to an undergraduate college in 2003.