That's about as much as I understood from that headline. Is the headline talking about China-prosecuted Internet-Policement or how China Prosecuated an Internet Policeman.
To understand articles about China, you need to understand something about China. China is a single party state. You might think that makes the government more monolithic with a greater unity of purpose. But the opposite is true. In multi-party democracies, each party has their own ideology, and only one at a time is running things. But in China, all these ideologies, from reactionary Maoist to free market wingnuts, compete within the communist party, because that is the only way to influence policy. These different ideological factions control different bureacracies and branches of the government. What is going on, is that these factions are competing for power by trying to suppress criticism of themselves, while allowing people to attack their adversaries.
If you take a little time to learn about Chinese politics, and who the big players are, this infighting can be very entertaining. Many Chinese consider it a spectator sport.