A three - year - old girl from Shaanxi Polytechnic University was injured by a roommate for 4 months and was blackmailed by the economy. In June 17th, female students have been under criminal detention; Shaanxi Polytechnic University will also expel the girl student status. 17, according to the Hanzhoung Municipal Public Security Bureau Hantai branch "on the damage he was a case report" said that after investigation, he was playing a batterer and Zhang are classmates at the end of last year, two people due to a conflict of trivia, Zhang to celebrate a beating. After judicial identification center injury identification, the result of minor injuries. In accordance with China's "criminal law", Zhang suspected of intentional injury by Hanzhoung Hantai police criminal detention.