Laws regulating conduct between private parties in matters like contracts, business, and domestic relations are called

civil law

Explanation:

part of a country's set of laws which is concerned with the private affairs of citizens, for example marriage and property ownership, rather than with crime.

i believe the answer is: streets and roads

public property refers to the property that can be used by all legal citizens in a certain country. the public property was created and maintain using the government budget that allocated specifically for it. the budget itself come from the citizen's income tax payment.