Your phone rings, and you hear the following message:
You have broken the law by posting illegal ads. You must immediately stop this activity and go to the Hangzhou Urban Administrative Bureau for punishment.The call is from the police. They will ring every twenty seconds until you give yourself up.
Sounds like a system ripe for abuse. Imagine someone posting fake ads with their competitors' numbers on them. I'm not advocating doing that. I'm just saying that due process and hearings are good things.