Each field/property is registered to an owner!
I will get slapped with warnings and fines if the neglected properties are mine.
Once I supply info about the fields lease holder he will get fined instead and most likely be stripped of any government funding for processing those fields.
I pay annual property taxes on all my land, the government knows what land belongs to whom.
Also, Croatia has a government controlled Agency For Transactions, it has the power to seize/freeze Your bank accounts and income if You are in any kind of dept.
Does that kinda make sense?!