After you enter Xi Hu Park from the east gate, you pass through the "Legal Information Corridor" (法制宣传廊 lit. legal propaganda corridor).
To either side, there are public service information posters concerning laws, government services, and health. Here is a selection.
The 3 Stages of Civilised Spitting
1) Spit into a tissue, not on the floor
2) Wrap the tissue up, without spilling anything
3) Put it in the bin, don't just leave it anywhere
The Qilihe District city management law enforcement section reminds you:
For the sake of the city environment and everyone's health, please do not spit or litter
Information about the Law on the Protection of Disabled Persons:
Safeguarding women's rights, and promoting gender equality:
Marriage, divorce, and adoption laws: