Hong Kong authorities have arrested a 57-year-old man for allegedly scamming three victims out of HK$310,000 (US$39,500) by pretending to be a police officer or government officials while claiming he could help them buy concert tickets and mobile phones at discounted prices through his contacts. Police said on Thursday they received reports from two of the three victims last month, who handed over around HK$11,000 to the suspect before losing contact with him. A broader investigation showed the...