Fraud investigator detained in Shanghai

British national Peter Humphrey, founder of the Hong Kong-based ChinaWhys investigation firm, has been detained by Shanghai police, The Wall Street Journal reported, citing people familiar with the matter. Sources said one of Humphrey’s clients was GlaxoSmithKline (GSK.NYSE, GSK.LON), which is under investigation in China for alleged bribery and related charges. Those who have worked with Humphrey said they did not know why he was detained. GSK Chief Executive Andrew Witty will detail what action the drugmaker is taking in response to allegations of bribery against it in China when he presents quarterly results on Wednesday, Reuters reported, citing anonymous sources.