China's Central Discipline Inspection Commission (CDIC) on April 17 confirmed that 51-year old Song Lin, Chairman of the state-owned China Resources Holdings and a Vice Minister-rank official was under investigation. The announcement was made 2 days after Wang Wenzhi, a reporter at a Xinhua-controlled newspaper accused Song Lin of laundering huge sums of money and having a mistress, Helen Yang, who works at the UBS investment bank in Hongkong.  Also known as Yang Lijuan, Helen Yang was responsible for liaison with State-owned Enterprises. Song Lin was detained on April 17 at Shenzhen.

In a 2000-character statement, the CDIC on April 17 refuted suggestions that the anti-corruption drive was a political witch hunt. Authored by Du Zhizhou, Executive Director of the Anti-Corruption Research Institute at Beihang University in Beijing, the statement asserted that the CDIC's investigations had been "comprehensive" and that government, Party, State-owned Enterprises, the military and universities and colleges were being scrutinised. He praised the arrest of Yao Mugen, former Deputy Governor of Jiangxi as demonstrative of the swift and unbiased action of the CDIC.