Can the police flag sent by the masses be hung on the post?

Of course. According to the Regulation on Asking about the Management of Police Flag, the use of police flag must be approved by the main person in charge of the flag-holding unit, and those who insult the police flag by destroying, scribbling, defacing, trampling and burning. It will be punished according to law, and there is no limit to where the police flag can be hung, so the police flag can be hung on the post.