A mainland Chinese university student in Hong Kong has lost about HK$1 million (US$127,500) in a scam, in which the fraudster claimed she was involved in a criminal case and demanded “guarantees” from her.Police said they received a report from a 19-year-old mainland woman who was student at the Hong Kong University of Science and Technology (HKUST) at 1.07am on Sunday.The force said the victim had earlier received calls from someone posing as a government officer, accusing her of being...