Both Japanese police and Japanese fire brigade use badges as class symbols. Only in very senior positions are the Chief Superintendent and the Superintendent qualified to use epaulettes.

Before 1990s, the class symbol of Japanese ordinary police was on the collar, but after 1990s, it was changed to the left chest. Use gold and blue colors and stripes to distinguish grades.

The police in Taiwan Province Province are also badges, and they should follow the Japanese example.