The work of the expressway auxiliary police includes checking the health code on the expressway, because the purpose of checking the health code is to protect people's health, further verify and strictly control the occurrence of new epidemics, and promote the harmonious and stable development of the economy and society. Now not only the police station checks the health code and travel code, but also all communities, streets and traffic intersections are checking the health code and travel code. It is also our responsibility and obligation to actively cooperate with the high-speed auxiliary police to check the health code.