It is such a passage that illustrates the role of setting up bad guys in the Tang Dynasty. It is equivalent to the current public security police and is also responsible for detective arrest. It's just that their names are all bad guys, all brought by bad coaches.
In fact, I had a similar position when I was a big fellow. He is also responsible for arresting detectives and is called "Who's the big shot". In the late Tang Dynasty, the rulers stabilized the country in order to strengthen their rule. As a result, similar positions were created. Today, we think this name is quite strange, but in the Tang Dynasty, it is estimated that no one will think this name is strange. In addition to the usual detectives arresting criminals and helping the court arrest criminals, they also have the ability to satisfy the emperor. Being able to welcome the official visit of the emperor was the opponent of the Royal Guards in the Ming Dynasty, but the bad guys in the Tang Dynasty obviously did not have such strength.
The most important position of this mysterious organization is a small official. In ancient times, the official points were not directly read by us, and the power of officials was obviously higher than that of petty officials. Under the ancient system, there were obvious differences between officials and officials. In ancient times, "official" was a superior, a position serving the people, and "official" was still the people. Although he was a law enforcer in the government, he was absolutely inferior in the strict structure of ancient times. The bad guys in Datang belong to this organization composed of officials. Usually help the government to do some law enforcement work, and obey the emperor's orders in special periods.
With the change of dynasties, the bad guys naturally disappeared. However, his position has not been completely abandoned. Similar organizations have existed for generations, but the name has changed again!