Law is a complex science where uniform and universal standards do not apply. The vast majority of norms are evaluative, and the answer is never unambiguous.
To assess a particular legal relationship, in addition to knowing what legal relationship we are dealing with, it is also important to know the wording of the law that existed at the time of the specific action.
Also crucial are statute of limitations, applicable law, thorough knowledge and protection of procedural law, and other factors.
You have rights even when the law imposes responsibilities on you and vice versa: you have responsibilities that accompany the powers assigned to you.
