Should adultery be declared a crime?

A lot of corrupt officials are either facing investigation or have been convicted thanks to the ongoing anti-corruption campaign. Some of them have even been found "guilty" of committing "adultery". This has prompted some people to ask whether adultery is a crime, because it is not listed in the Criminal Law of China. But the constitution of the Communist Party of China has a clause that says that adultery is punishable; it calls for warning, revocation of the "guilty" person's Party post, probation and even expulsion from the Party. In other words, even though adultery is not a crime per se, it is a violation of the Party constitution.

The question is: Why is the Party regulation different from the law of the country? Is there a need to include adultery as a crime in the laws of the country? The resolution issued by the Fourth Plenum of 18th CPC Central Committee in October 2014 offers an explanation: the Party's constitution is an important part of China's legal system, and for Party members, the Party constitution is the same important as the national laws. This means that despite adultery not being mentioned as a crime in the country's laws, Party members indulging in adultery will be punished.

Wang Qishan, chief of the Central Commission for Discipline Inspection that is spearheading the anti-corruption drive, published an article in People's Daily interpreting the core spirit of the Fourth Plenum's resolution. The moment one takes the oath to join the CPC, a person gives up some of the basic rights endowed by the country's Constitution and subjects himself/herself to the discipline of the Party and stricter standards.