Natural Law is fair by definition. It is merely a reflection of ancient ethical norms.
Positive Law -- the laws set down by kings and legislatures -- is much less fair, but sometimes, however rarely, it tries to embody a codification of the Natural Law.
The way the Positive Law is enforced and prosecuted is an utter disaster. In civil courts, justice is bought and sold as a rule; fairness (and even adjudication itself!) is an exception. It's so bad, so transparently twisted, that I think it's fair to say that humans in general have shown that they cannot be trusted with the administration of things such as civil laws. Too corruptible.
Positive Law -- the laws set down by kings and legislatures -- is much less fair, but sometimes, however rarely, it tries to embody a codification of the Natural Law.
The way the Positive Law is enforced and prosecuted is an utter disaster. In civil courts, justice is bought and sold as a rule; fairness (and even adjudication itself!) is an exception. It's so bad, so transparently twisted, that I think it's fair to say that humans in general have shown that they cannot be trusted with the administration of things such as civil laws. Too corruptible.