There are indeed bad people in history. In the Tang dynasty, there was an official administrative agency called the bad guys, and their leader was called the bad handsome. The main task of this institution is to find case clues in every corner of the city, solve crimes and catch thieves and fugitives. Because of the nature of their work, bad people are exposed to all walks of life, which makes their identities diverse and different from the single image in film and television works.

Jiang Lansheng and Cao explained "bad" in the Chinese Dictionary of Tang and Five Dynasties. Refers to those petty officials who were requisitioned by the Tang government and were responsible for investigation and arrest. These people are sometimes called "bad backs" and their leaders are called "bad handsome". In some historical documents, such as Wei Xuan's The Story of Liu Bin and Zhang Kun's.

Brief introduction of Tang dynasty

The territory of the Tang Dynasty was unprecedented. At the peak, it started from the Sea of Japan in the east, occupied by Annan in the south, reached the Aral Sea in the west and reached Lake Baikal in the north. The Tang Dynasty adopted the policy of imprisoning neighboring ethnic groups and established close political and economic ties with them through knighthood and in-laws. The ruling class is open-minded, broad-minded and accepts foreign cultures. Japan, Nanzhao, Silla, Bohai and other countries have sent envoys to learn the system and culture of the Tang Dynasty, and all ethnic groups in the border areas have shown a great blend with the mainland.

As one of the most powerful countries in the world at that time, the Tang Dynasty had a well-known reputation and many contacts with Asian and European countries. After the Tang Dynasty, China was known as a "Tangren" overseas. The Tang Dynasty actively exchanged and studied with other countries, making its economy, society, culture and art diversified and open, and made important achievements in poetry (Tang poetry), calligraphy, painting and music.