Qin Weizhong, former mayor of the southern technology hub of Shenzhen, is under investigation for corruption, the country’s top watchdog has confirmed.According to a statement by the Central Commission for Discipline Inspection on Monday, Qin is “suspected of grave disciplinary and law violations and is currently undergoing review”, which usually means a corruption probe.Qin was appointed deputy party secretary and mayor of Shenzhen in May 2021.On August 24 this year, those positions were...