Police in Tuyen Quang province have detained Nguyen Ha Duy, a teacher at Tuyen Quang Specialized High School, under emergency arrest. The detention is linked to an investigation concerning unusually high scores on a mathematics exam, specifically numerous perfect scores. The Tuyen Quang Provincial Police’s Investigative Security Agency executed the order on July 5th. Details about the nature of the investigation and the alleged irregularities are currently limited. This action suggests authorities are taking the matter seriously and suspect foul play related to the exam results. Further investigation is underway to determine the extent of the alleged fraud and any other potential involvement. The case has sparked public concern regarding academic integrity within the province's education system.