Your question is too general, and you'd have realized it if you built a toy model. You need to think about what your goals are with the model. If it's to build

Your question is too general, and you'd have realized it if you built a toy model. You need to think about what your goals are with the model. If it's to build a replica government in code, then make a start and have at it, no special tech is needed. Just start encoding your data (eg. {"Jaywalking Fee" : "100.00"} into files your model can parse. Prolog isn't the right tool here, there are no complex dependency chains to reason through, it's not really right for modelling uncertainty, which you will have to accept until you start caring about what parts of the model will need to be high fidelity.