Sir can refer to both teachers and officers. Hong Kong used to be a British colony, so all officers are called in English, so they are often called chiefs. The police in Hong Kong are disciplined forces, which can be said to be a kind of military attache, so they are also called officers. This is a kind of address between honorific words and banter, just as people are used to addressing officials as adults and lords.

Mr. Chairman: The general term for police is a special title for officers and teachers left by the British in the past.

Extended data

Hong Kong Police Force has a long history of 160 years. From the British occupation of 1842 to the return of 1997, ordinary citizens have many common names for "police". In addition, the jargon used by the "police force" also has the subculture of "enemy" criminals and underworld figures.

(1) "Ying Ling"-a popular name for the police, which comes from the title of "Royal" of the Hong Kong Police (Royal Hong Kong Police Force) before the reunification.

(2) "A sir": the popular name of the police, which is a special name for officers and teachers left over from British rule.

(3) "Flower Waist" or "Flower Waist Boy"-another common name in Hong Kong before the 1960s, originally an ancient name for the police, originated from the name of the underworld in Guangdong in the Qing Dynasty, because the bureaucrats wore a colorful cloth belt around their waist.

(4) "Dispatch": This is a very old name used by China for official errands.

(5) "Police": This is a common name for "police" in Cantonese, which contains derogatory meanings, such as taxi drivers and kitchen cooks.

(6) "Chapo": Same as above, it is the common name of policewoman.

(6) "loser": The most common name of the older generation of criminals is "pickpocket", which is a slander to the police. "loser" is the "backstab" they were caught.

"Turtle": Since the 1980s, the juvenile underworld has slandered the uniformed police, because the uniformed police wear big hats and look like turtle shells. They also slandered the law enforcement officers of Hong Kong Customs as "sea dogs".

"Blackfoot": Before the 1980s, the underworld slandered police officers in uniform. Because ordinary policemen in uniform are used to wearing a pair of black canvas leggings on their calves, they are called "black feet". Twenty years ago, after the Hong Kong police canceled "foot binding", this title has been eliminated.

"Undercover" is also called "25-year-old boy", "anti-bone boy" and "needle". It is another name for the police who have sneaked into criminal gangs for a long time, and it is a special police set up to help solve difficult cases or major cases.

There are more than 80 "undercover" in the Hong Kong Police Force lurking in various criminal groups. Being an undercover policeman must be voluntary, not an only child, and his ancestors must be innocent for three generations. "Undercover" is generally recruited by the society or trainee police, and the face must be unfamiliar. "Undercover" has many special rights and can be promoted quickly by "faking" after retiring.

"Informant": It is one of the sources of information obtained by the Hong Kong police. There are two kinds of people who are "informers" and volunteers, who are generally related to criminal groups; The other kind of people are recruited criminals who make contributions by confessing their guilt. Of course, "informants" generally have business relations with the police, and the annual expenditure of the Hong Kong police is as high as HK$ 500 million, so there is a saying in Hong Kong that "making a fortune by being an informant".

References:

Baidu encyclopedia _ Hong Kong police