22 June 2012. Lim Cheng Hoe, Chief of Protocol at the Ministry of Foreign Affairs, was suspended on Tuesday and is being investigated by the Commercial Affairs Department. The Straits Times reported that Lim has not been arrested, and that Michael Tan Keng Siong is currently acting chief of protocol at MFA. Ministry said to Yahoo! Singapore that it had received information that improper claims for reimbursements were made by him. He had served for more than 38 years in government service.