Does a policeman's alarm number never change?

A policeman's alarm number is the policeman's "ID card". Normally, an alarm will follow a policeman until he retires. Due to the need of work and convenient use, multiple number plates can be allocated when distributing alarm signals.

If there is no big transfer or promotion, then the alarm number will remain unchanged in the police career and will follow a policeman until retirement. If the city is transferred and the alarm number remains unchanged, a new alarm number will be issued only if it is transferred across prefecture-level cities or provinces. Those who leave the original police force due to transfer or punishment should return their police uniforms and alarm numbers, and the recovered numbers can be reissued. The province will not repeat the alarm, and there may be the same number between provinces, so the provinces can't be distinguished from the alarm number on the uniform, and the name of the province is written on the right chest tag. Due to the need of work and convenient use, multiple number plates can be allocated when distributing alarm signals.

Extended data:

There are no letters on the warning signs, but all numbers-there are six warning signs for public security, national security police, court and procuratorate bailiffs, and seven warning signs for prison reeducation-through-labor police.

0 1 the Supreme People's Procuratorate Law Police Bureau, the Supreme People's Court Judicial Police Bureau, People's Police Bureau of Prison Reeducation through Labor of the Ministry of Justice.

Public security administration: (the number is 6 digits long, and the first two digits are the city code; 000 is generally the code of the ministries and agencies); Judicial police: (prison and reeducation through labor system number 7, procuratorial and court system number 6, the first two numbers are divided into provinces); The numbers of police cadets are prefixed with Chinese characters or letters, such as "police academy", "criminal investigation", "X" (the pinyin abbreviation of police cadets), "S" (judicial) and "SF" (judicial).

References:

Baidu encyclopedia-alarm number