This armband is not a formal departmental armband in China. It is likely to be a temporary emergency armband, or a design work in the middle, a symbolic decoration, or an armband with no substantive effect, because it does not conform to the basic characteristics of the uniform armband of public departments in China.

Because the armbands of public administration departments such as industry and commerce, taxation, police and road administration in China must be marked with Chinese characters, supplemented by pinyin abbreviations, and English is optional, but Chinese characters are absolutely indispensable, which violates the legal provisions of domestic law enforcement departments on text signs.

SJLZ, if it is a road administration, must have the Chinese characters of "Road Administration" or "China Road Administration" and "China Road Administration Inspection" in the middle, or the segment names of "Jingfu Road Administration" and "Shenda Road Administration", and must have the reflection of road safety at night.

If it is foreign, SJLZ is not English, and foreign countries will not use the Great Wall as a background pattern.

Therefore, it can be seen that this is actually not the official armband of any law enforcement industry or department in China. If it is a border section, the word "China" must be added for nationality identification.