The Central Commission for Discipline Inspection (CCDI) of the Communist Party of China stated on its website Thursday evening that Song Lin, chairman of the State-owned enterprise China Resources Holdings and also the Communist Party chief of the firm, is being investigated for "suspected serious violations of discipline and law."

The lightning decisive turn came two days after Wang Wenzhi, a reporter with the Economic Information Daily newspaper run by the Xinhua News Agency, notified the anti-graft authorities of Song's alleged wrongdoings through his real-name Weibo account and one day after Song refuted the allegations. It made a forceful impression on the public.

A scholar who is familiar with China's discipline inspection work told the Global Times that preliminary investigations into Song might already have been kicked off as Wang accused Song of breaches of Communist Party rules including corruption for the first time in July 2013.

The reaction by discipline and inspection authorities to Wang's second act of whistle-blowing sent a strong signal: Whoever is accused of serious corruption, as long as the whistle-blowing is verified, the authorities will show "zero tolerance" for him or her and unhesitatingly act.

Another important message conveyed through Song's case is that the CCDI, as the core of anti-graft authorities, is resolute and unbiased in cooperating with all anti-corruption channels at grass-roots level. Some worried that the State crackdown on online rumors might mire the enthusiastic participation of netizens in fighting corruption. However, Song's case shows "online anti-corruption" has maintained its power and influence, still acting as an effective method for the public to participate in anti-graft endeavors.

Wang and his counterpart Luo Changping, who succeeded in exposing the corruption of senior official Liu Tienan, carved a new pattern for a media person to carry out supervision of public opinion, although it may also bring uncertain and negative effects.

Chen Yongzhou, also a Chinese reporter, was sentenced to jail for abusing media power in slandering a construction machinery company, Zoomlion. The reputation of journalists for blowing the whistle on corruption is a mixed one after such a scandal. Wang undoubtedly helped score a point to rebuild the good reputation.

A journalist now can bring a senior corrupt official down through the Internet.

This will deter corrupt officials in ways that other channels cannot achieve and add a sense of menace.

China has been embarking on a profound, extensive and decisive anti-corruption campaign. It's an important breakthrough for establishing modern governance. There are myriad arduous tasks ahead which require public support.