A staff member of the British Consulate General in Hong Kong who went missing earlier this month has been detained by mainland authorities following a trip to southern China's Shenzhen, the Chinese Foreign Ministry confirmed Wednesday.Spokesman Geng Shuang, at a regular press briefing, said Simon Cheng, a trade and investment officer at the consulate's Scottish Development International Section, was detained for 15 days in Shenzhen for violating a law relating to security control."Let me make it clear that this employee is a Hong Kong citizen, he is not a British citizen, he is a Chinese, t…READ FULL ARTICLE