Why do the police and robbers in Hong Kong movies pay homage to Master Guan?

Because Guan Gong said "loyalty, righteousness, faith, wisdom, benevolence and courage".

Guan Gong is the embodiment of loyalty and justice. After five passes, six generals will be killed, and the emperor's sister-in-law will be escorted for thousands of miles to find her righteous brother. He has integrity and high martial arts.

The so-called underworld, the former Jianghu gangs, should use loyalty to maintain the stability and development of gangs. So everyone worships Guan Gong.

The Hong Kong police also paid tribute to Guan Gong:

Paying tribute to Guan has always been a tradition of the Hong Kong police. It is reported that the Public Relations Branch of the Hong Kong Police will "invite" Guandi to a temple in Wan Chai, so that sincere police officers can continue to visit the temple. A senior police officer said that the new generation of police leaders have indicated that Guandi will not be encouraged to become a designated sacrificial ceremony, and some police districts are considering "please leave" Guandi. Some senior police officers also revealed that paying homage to Guan Emperor is not only a tradition, but also a psychological comfort and a bridge between superiors and subordinates.

Some psychologists have analyzed that if the police give up worshipping Guandi, it may make police officers who have always had the habit of worshipping Guandi feel uncomfortable: "It's like everyone is used to carrying a mobile phone and suddenly it's gone, and they will feel uneasy psychologically."

The Hong Kong police's worship of "Guan" has entrusted their professional ideals of strengthening the body, eliminating evil spirits and sincere unity.

Guan Gong was in danger of being swept out of the house at the Hong Kong police station, but unexpectedly, he flew quietly across the sea and was invited to a foreign altar. It turns out that before and after the reunification of Hong Kong, many Hong Kong immigrants passed the Commonwealth Examination and entered the police stations in Britain and Canada, so many police stations in these two countries put Guan Gong statues on them. These policemen attributed the success of solving the case to the worship of Guan Gong, which made Guan Gong's belief take root overseas and greatly increased his prestige.

This leads to a rather interesting question. Why do the police believe Guan Gong persistently and devoutly? Hu Xiaowei, a researcher at the Institute of Literature, China Academy of Social Sciences, who has been engaged in research on Guan Gong's belief for many years, has consulted the Hong Kong Police Force on this issue and got two official answers. The main idea is: First, there is injustice and anxiety in society, and the police represent social justice, while the upright Guan Gong symbolizes physical fitness and the elimination of evil spirits. Second, the police need unity, which is exactly what Guan Gong has. But these do not seem to explain the whole problem.

Guan Gong's prestige in the eyes of the police was not formed in a day or two. Researcher Hu Xiaowei said that the predecessor of the police, the official worship of Guan Gong, began in the Northern Song Dynasty. The important reason for the formation of this belief lies in Guan Gong's identity. He works as a Sima in another department, which is equivalent to catching the head, that is, the official in charge of local public security. Guan Yu's personality characteristics and legendary experience made him gradually evolve into a god of public security in the Northern Song Dynasty, and it has continued to this day.